Home / 14,915.87-20,583.95-8,542.55

Finding the Fourth Proportional to 14,915.87, 20,583.95 and 8,542.55

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Solution

The fourth proportional to 14,915.87, 20,583.95 and 8,542.55 is: 11,788.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,915.87 : 20,583.95 = 8,542.55 : x
  2. Step 2: Convert to fraction form
    14,915.87/20,583.95 = 8,542.55/x
  3. Step 3: Cross multiply
    14,915.87x = 20,583.95 × 8,542.55
  4. Step 4: Simplify right side
    14,915.87x = 175,839,422.07
  5. Step 5: Solve for x
    x = 175,839,422.07/14,915.87
  6. Step 6: Final answer
    x = 11,788.75

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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.