Home / 13,997.80-19,316.50-7,710.16

Finding the Fourth Proportional to 13,997.80, 19,316.50 and 7,710.16

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Solution

The fourth proportional to 13,997.80, 19,316.50 and 7,710.16 is: 10,639.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,997.80 : 19,316.50 = 7,710.16 : x
  2. Step 2: Convert to fraction form
    13,997.80/19,316.50 = 7,710.16/x
  3. Step 3: Cross multiply
    13,997.80x = 19,316.50 × 7,710.16
  4. Step 4: Simplify right side
    13,997.80x = 148,933,305.64
  5. Step 5: Solve for x
    x = 148,933,305.64/13,997.80
  6. Step 6: Final answer
    x = 10,639.77

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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.