Home / 15,937.26-21,990.56-9,038.45

Finding the Fourth Proportional to 15,937.26, 21,990.56 and 9,038.45

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Solution

The fourth proportional to 15,937.26, 21,990.56 and 9,038.45 is: 12,471.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,937.26 : 21,990.56 = 9,038.45 : x
  2. Step 2: Convert to fraction form
    15,937.26/21,990.56 = 9,038.45/x
  3. Step 3: Cross multiply
    15,937.26x = 21,990.56 × 9,038.45
  4. Step 4: Simplify right side
    15,937.26x = 198,760,421.89
  5. Step 5: Solve for x
    x = 198,760,421.89/15,937.26
  6. Step 6: Final answer
    x = 12,471.43

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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.