Home / 14,655.31-20,225.32-8,279.69

Finding the Fourth Proportional to 14,655.31, 20,225.32 and 8,279.69

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Solution

The fourth proportional to 14,655.31, 20,225.32 and 8,279.69 is: 11,426.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,655.31 : 20,225.32 = 8,279.69 : x
  2. Step 2: Convert to fraction form
    14,655.31/20,225.32 = 8,279.69/x
  3. Step 3: Cross multiply
    14,655.31x = 20,225.32 × 8,279.69
  4. Step 4: Simplify right side
    14,655.31x = 167,459,379.75
  5. Step 5: Solve for x
    x = 167,459,379.75/14,655.31
  6. Step 6: Final answer
    x = 11,426.53

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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.