Home / 10,617.88-15,925.02-3,220.55

Finding the Fourth Proportional to 10,617.88, 15,925.02 and 3,220.55

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Solution

The fourth proportional to 10,617.88, 15,925.02 and 3,220.55 is: 4,830.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.88 : 15,925.02 = 3,220.55 : x
  2. Step 2: Convert to fraction form
    10,617.88/15,925.02 = 3,220.55/x
  3. Step 3: Cross multiply
    10,617.88x = 15,925.02 × 3,220.55
  4. Step 4: Simplify right side
    10,617.88x = 51,287,323.16
  5. Step 5: Solve for x
    x = 51,287,323.16/10,617.88
  6. Step 6: Final answer
    x = 4,830.28

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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.