Home / 13,303.42-18,359.99-7,998.12

Finding the Fourth Proportional to 13,303.42, 18,359.99 and 7,998.12

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Solution

The fourth proportional to 13,303.42, 18,359.99 and 7,998.12 is: 11,038.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,303.42 : 18,359.99 = 7,998.12 : x
  2. Step 2: Convert to fraction form
    13,303.42/18,359.99 = 7,998.12/x
  3. Step 3: Cross multiply
    13,303.42x = 18,359.99 × 7,998.12
  4. Step 4: Simplify right side
    13,303.42x = 146,845,403.22
  5. Step 5: Solve for x
    x = 146,845,403.22/13,303.42
  6. Step 6: Final answer
    x = 11,038.17

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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.