Home / 15,240.11-21,035.57-8,867.93

Finding the Fourth Proportional to 15,240.11, 21,035.57 and 8,867.93

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Solution

The fourth proportional to 15,240.11, 21,035.57 and 8,867.93 is: 12,240.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,240.11 : 21,035.57 = 8,867.93 : x
  2. Step 2: Convert to fraction form
    15,240.11/21,035.57 = 8,867.93/x
  3. Step 3: Cross multiply
    15,240.11x = 21,035.57 × 8,867.93
  4. Step 4: Simplify right side
    15,240.11x = 186,541,962.27
  5. Step 5: Solve for x
    x = 186,541,962.27/15,240.11
  6. Step 6: Final answer
    x = 12,240.20

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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.