Home / 10,972.13-15,144.23-6,259.14

Finding the Fourth Proportional to 10,972.13, 15,144.23 and 6,259.14

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Solution

The fourth proportional to 10,972.13, 15,144.23 and 6,259.14 is: 8,639.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,972.13 : 15,144.23 = 6,259.14 : x
  2. Step 2: Convert to fraction form
    10,972.13/15,144.23 = 6,259.14/x
  3. Step 3: Cross multiply
    10,972.13x = 15,144.23 × 6,259.14
  4. Step 4: Simplify right side
    10,972.13x = 94,789,871.41
  5. Step 5: Solve for x
    x = 94,789,871.41/10,972.13
  6. Step 6: Final answer
    x = 8,639.15

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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.