Home / 14,742.81-20,355.57-9,079.29

Finding the Fourth Proportional to 14,742.81, 20,355.57 and 9,079.29

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Solution

The fourth proportional to 14,742.81, 20,355.57 and 9,079.29 is: 12,535.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,742.81 : 20,355.57 = 9,079.29 : x
  2. Step 2: Convert to fraction form
    14,742.81/20,355.57 = 9,079.29/x
  3. Step 3: Cross multiply
    14,742.81x = 20,355.57 × 9,079.29
  4. Step 4: Simplify right side
    14,742.81x = 184,814,123.15
  5. Step 5: Solve for x
    x = 184,814,123.15/14,742.81
  6. Step 6: Final answer
    x = 12,535.88

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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.