Home / 14,677.28-20,254.22-8,389.64

Finding the Fourth Proportional to 14,677.28, 20,254.22 and 8,389.64

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Solution

The fourth proportional to 14,677.28, 20,254.22 and 8,389.64 is: 11,577.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,677.28 : 20,254.22 = 8,389.64 : x
  2. Step 2: Convert to fraction form
    14,677.28/20,254.22 = 8,389.64/x
  3. Step 3: Cross multiply
    14,677.28x = 20,254.22 × 8,389.64
  4. Step 4: Simplify right side
    14,677.28x = 169,925,614.28
  5. Step 5: Solve for x
    x = 169,925,614.28/14,677.28
  6. Step 6: Final answer
    x = 11,577.46

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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.