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Finding the Fourth Proportional to 15,803.64, 23,686.02 and 8,008.20

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Solution

The fourth proportional to 15,803.64, 23,686.02 and 8,008.20 is: 12,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,803.64 : 23,686.02 = 8,008.20 : x
  2. Step 2: Convert to fraction form
    15,803.64/23,686.02 = 8,008.20/x
  3. Step 3: Cross multiply
    15,803.64x = 23,686.02 × 8,008.20
  4. Step 4: Simplify right side
    15,803.64x = 189,682,385.36
  5. Step 5: Solve for x
    x = 189,682,385.36/15,803.64
  6. Step 6: Final answer
    x = 12,002.45

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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.