Home / 15,058.47-20,781.23-9,088.98

Finding the Fourth Proportional to 15,058.47, 20,781.23 and 9,088.98

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Solution

The fourth proportional to 15,058.47, 20,781.23 and 9,088.98 is: 12,543.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,058.47 : 20,781.23 = 9,088.98 : x
  2. Step 2: Convert to fraction form
    15,058.47/20,781.23 = 9,088.98/x
  3. Step 3: Cross multiply
    15,058.47x = 20,781.23 × 9,088.98
  4. Step 4: Simplify right side
    15,058.47x = 188,880,183.85
  5. Step 5: Solve for x
    x = 188,880,183.85/15,058.47
  6. Step 6: Final answer
    x = 12,543.12

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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.