Home / 15,255.95-21,052.91-9,940.73

Finding the Fourth Proportional to 15,255.95, 21,052.91 and 9,940.73

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Solution

The fourth proportional to 15,255.95, 21,052.91 and 9,940.73 is: 13,718.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,255.95 : 21,052.91 = 9,940.73 : x
  2. Step 2: Convert to fraction form
    15,255.95/21,052.91 = 9,940.73/x
  3. Step 3: Cross multiply
    15,255.95x = 21,052.91 × 9,940.73
  4. Step 4: Simplify right side
    15,255.95x = 209,281,213.61
  5. Step 5: Solve for x
    x = 209,281,213.61/15,255.95
  6. Step 6: Final answer
    x = 13,718.01

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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.