Home / 14,995.70-20,685.90-9,023.78

Finding the Fourth Proportional to 14,995.70, 20,685.90 and 9,023.78

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Solution

The fourth proportional to 14,995.70, 20,685.90 and 9,023.78 is: 12,447.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,995.70 : 20,685.90 = 9,023.78 : x
  2. Step 2: Convert to fraction form
    14,995.70/20,685.90 = 9,023.78/x
  3. Step 3: Cross multiply
    14,995.70x = 20,685.90 × 9,023.78
  4. Step 4: Simplify right side
    14,995.70x = 186,665,010.70
  5. Step 5: Solve for x
    x = 186,665,010.70/14,995.70
  6. Step 6: Final answer
    x = 12,447.90

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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.