Home / 14,170.12-21,225.90-8,309.08

Finding the Fourth Proportional to 14,170.12, 21,225.90 and 8,309.08

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Solution

The fourth proportional to 14,170.12, 21,225.90 and 8,309.08 is: 12,446.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,170.12 : 21,225.90 = 8,309.08 : x
  2. Step 2: Convert to fraction form
    14,170.12/21,225.90 = 8,309.08/x
  3. Step 3: Cross multiply
    14,170.12x = 21,225.90 × 8,309.08
  4. Step 4: Simplify right side
    14,170.12x = 176,367,701.17
  5. Step 5: Solve for x
    x = 176,367,701.17/14,170.12
  6. Step 6: Final answer
    x = 12,446.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.