Home / 10,153.02-15,192.60-8,381.55

Finding the Fourth Proportional to 10,153.02, 15,192.60 and 8,381.55

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Solution

The fourth proportional to 10,153.02, 15,192.60 and 8,381.55 is: 12,541.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,153.02 : 15,192.60 = 8,381.55 : x
  2. Step 2: Convert to fraction form
    10,153.02/15,192.60 = 8,381.55/x
  3. Step 3: Cross multiply
    10,153.02x = 15,192.60 × 8,381.55
  4. Step 4: Simplify right side
    10,153.02x = 127,337,536.53
  5. Step 5: Solve for x
    x = 127,337,536.53/10,153.02
  6. Step 6: Final answer
    x = 12,541.84

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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.