Home / 18,490.82-25,515.95-10,531.49

Finding the Fourth Proportional to 18,490.82, 25,515.95 and 10,531.49

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Solution

The fourth proportional to 18,490.82, 25,515.95 and 10,531.49 is: 14,532.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490.82 : 25,515.95 = 10,531.49 : x
  2. Step 2: Convert to fraction form
    18,490.82/25,515.95 = 10,531.49/x
  3. Step 3: Cross multiply
    18,490.82x = 25,515.95 × 10,531.49
  4. Step 4: Simplify right side
    18,490.82x = 268,720,792.03
  5. Step 5: Solve for x
    x = 268,720,792.03/18,490.82
  6. Step 6: Final answer
    x = 14,532.66

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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.