Home / 15,325.12-21,149.57-11,541.61

Finding the Fourth Proportional to 15,325.12, 21,149.57 and 11,541.61

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Solution

The fourth proportional to 15,325.12, 21,149.57 and 11,541.61 is: 15,928.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,325.12 : 21,149.57 = 11,541.61 : x
  2. Step 2: Convert to fraction form
    15,325.12/21,149.57 = 11,541.61/x
  3. Step 3: Cross multiply
    15,325.12x = 21,149.57 × 11,541.61
  4. Step 4: Simplify right side
    15,325.12x = 244,100,088.61
  5. Step 5: Solve for x
    x = 244,100,088.61/15,325.12
  6. Step 6: Final answer
    x = 15,928.10

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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.