Home / 10,151.26-15,221.13-7,409.50

Finding the Fourth Proportional to 10,151.26, 15,221.13 and 7,409.50

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Solution

The fourth proportional to 10,151.26, 15,221.13 and 7,409.50 is: 11,110.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,151.26 : 15,221.13 = 7,409.50 : x
  2. Step 2: Convert to fraction form
    10,151.26/15,221.13 = 7,409.50/x
  3. Step 3: Cross multiply
    10,151.26x = 15,221.13 × 7,409.50
  4. Step 4: Simplify right side
    10,151.26x = 112,780,962.74
  5. Step 5: Solve for x
    x = 112,780,962.74/10,151.26
  6. Step 6: Final answer
    x = 11,110.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.