Home / 10,962.81-15,128.87-6,247.17

Finding the Fourth Proportional to 10,962.81, 15,128.87 and 6,247.17

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Solution

The fourth proportional to 10,962.81, 15,128.87 and 6,247.17 is: 8,621.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.81 : 15,128.87 = 6,247.17 : x
  2. Step 2: Convert to fraction form
    10,962.81/15,128.87 = 6,247.17/x
  3. Step 3: Cross multiply
    10,962.81x = 15,128.87 × 6,247.17
  4. Step 4: Simplify right side
    10,962.81x = 94,512,591.56
  5. Step 5: Solve for x
    x = 94,512,591.56/10,962.81
  6. Step 6: Final answer
    x = 8,621.20

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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.