Home / 15,120.98-22,681.78-5,503.53

Finding the Fourth Proportional to 15,120.98, 22,681.78 and 5,503.53

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Solution

The fourth proportional to 15,120.98, 22,681.78 and 5,503.53 is: 8,255.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,120.98 : 22,681.78 = 5,503.53 : x
  2. Step 2: Convert to fraction form
    15,120.98/22,681.78 = 5,503.53/x
  3. Step 3: Cross multiply
    15,120.98x = 22,681.78 × 5,503.53
  4. Step 4: Simplify right side
    15,120.98x = 124,829,856.68
  5. Step 5: Solve for x
    x = 124,829,856.68/15,120.98
  6. Step 6: Final answer
    x = 8,255.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.