Home / 13,997.81-19,316.98-7,710.19

Finding the Fourth Proportional to 13,997.81, 19,316.98 and 7,710.19

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Solution

The fourth proportional to 13,997.81, 19,316.98 and 7,710.19 is: 10,640.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.81 : 19,316.98 = 7,710.19 : x
  2. Step 2: Convert to fraction form
    13,997.81/19,316.98 = 7,710.19/x
  3. Step 3: Cross multiply
    13,997.81x = 19,316.98 × 7,710.19
  4. Step 4: Simplify right side
    13,997.81x = 148,937,547.37
  5. Step 5: Solve for x
    x = 148,937,547.37/13,997.81
  6. Step 6: Final answer
    x = 10,640.06

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.