Home / 15,651.02-21,600.18-8,937.60

Finding the Fourth Proportional to 15,651.02, 21,600.18 and 8,937.60

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Solution

The fourth proportional to 15,651.02, 21,600.18 and 8,937.60 is: 12,334.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,651.02 : 21,600.18 = 8,937.60 : x
  2. Step 2: Convert to fraction form
    15,651.02/21,600.18 = 8,937.60/x
  3. Step 3: Cross multiply
    15,651.02x = 21,600.18 × 8,937.60
  4. Step 4: Simplify right side
    15,651.02x = 193,053,768.77
  5. Step 5: Solve for x
    x = 193,053,768.77/15,651.02
  6. Step 6: Final answer
    x = 12,334.90

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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.