Home / 14,656.08-20,221.20-8,988.96

Finding the Fourth Proportional to 14,656.08, 20,221.20 and 8,988.96

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Solution

The fourth proportional to 14,656.08, 20,221.20 and 8,988.96 is: 12,402.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,656.08 : 20,221.20 = 8,988.96 : x
  2. Step 2: Convert to fraction form
    14,656.08/20,221.20 = 8,988.96/x
  3. Step 3: Cross multiply
    14,656.08x = 20,221.20 × 8,988.96
  4. Step 4: Simplify right side
    14,656.08x = 181,767,557.95
  5. Step 5: Solve for x
    x = 181,767,557.95/14,656.08
  6. Step 6: Final answer
    x = 12,402.19

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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.