Home / 10,129.28-13,975.14-5,652.32

Finding the Fourth Proportional to 10,129.28, 13,975.14 and 5,652.32

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Solution

The fourth proportional to 10,129.28, 13,975.14 and 5,652.32 is: 7,798.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,129.28 : 13,975.14 = 5,652.32 : x
  2. Step 2: Convert to fraction form
    10,129.28/13,975.14 = 5,652.32/x
  3. Step 3: Cross multiply
    10,129.28x = 13,975.14 × 5,652.32
  4. Step 4: Simplify right side
    10,129.28x = 78,991,963.32
  5. Step 5: Solve for x
    x = 78,991,963.32/10,129.28
  6. Step 6: Final answer
    x = 7,798.38

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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.