Home / 10,962.81-15,129.59-6,247.53

Finding the Fourth Proportional to 10,962.81, 15,129.59 and 6,247.53

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Solution

The fourth proportional to 10,962.81, 15,129.59 and 6,247.53 is: 8,622.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,962.81 : 15,129.59 = 6,247.53 : x
  2. Step 2: Convert to fraction form
    10,962.81/15,129.59 = 6,247.53/x
  3. Step 3: Cross multiply
    10,962.81x = 15,129.59 × 6,247.53
  4. Step 4: Simplify right side
    10,962.81x = 94,522,536.18
  5. Step 5: Solve for x
    x = 94,522,536.18/10,962.81
  6. Step 6: Final answer
    x = 8,622.11

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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.