Home / 15,999.12-22,076.15-8,925.53

Finding the Fourth Proportional to 15,999.12, 22,076.15 and 8,925.53

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Solution

The fourth proportional to 15,999.12, 22,076.15 and 8,925.53 is: 12,315.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,999.12 : 22,076.15 = 8,925.53 : x
  2. Step 2: Convert to fraction form
    15,999.12/22,076.15 = 8,925.53/x
  3. Step 3: Cross multiply
    15,999.12x = 22,076.15 × 8,925.53
  4. Step 4: Simplify right side
    15,999.12x = 197,041,184.10
  5. Step 5: Solve for x
    x = 197,041,184.10/15,999.12
  6. Step 6: Final answer
    x = 12,315.75

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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.