Home / 15,411.12-21,260.60-9,034.49

Finding the Fourth Proportional to 15,411.12, 21,260.60 and 9,034.49

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Solution

The fourth proportional to 15,411.12, 21,260.60 and 9,034.49 is: 12,463.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,411.12 : 21,260.60 = 9,034.49 : x
  2. Step 2: Convert to fraction form
    15,411.12/21,260.60 = 9,034.49/x
  3. Step 3: Cross multiply
    15,411.12x = 21,260.60 × 9,034.49
  4. Step 4: Simplify right side
    15,411.12x = 192,078,526.62
  5. Step 5: Solve for x
    x = 192,078,526.62/15,411.12
  6. Step 6: Final answer
    x = 12,463.63

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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.