Home / 15,503.97-21,393.82-9,130.19

Finding the Fourth Proportional to 15,503.97, 21,393.82 and 9,130.19

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Solution

The fourth proportional to 15,503.97, 21,393.82 and 9,130.19 is: 12,598.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,503.97 : 21,393.82 = 9,130.19 : x
  2. Step 2: Convert to fraction form
    15,503.97/21,393.82 = 9,130.19/x
  3. Step 3: Cross multiply
    15,503.97x = 21,393.82 × 9,130.19
  4. Step 4: Simplify right side
    15,503.97x = 195,329,545.87
  5. Step 5: Solve for x
    x = 195,329,545.87/15,503.97
  6. Step 6: Final answer
    x = 12,598.68

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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.