Home / 14,711.67-20,301.61-8,422.83

Finding the Fourth Proportional to 14,711.67, 20,301.61 and 8,422.83

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Solution

The fourth proportional to 14,711.67, 20,301.61 and 8,422.83 is: 11,623.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,711.67 : 20,301.61 = 8,422.83 : x
  2. Step 2: Convert to fraction form
    14,711.67/20,301.61 = 8,422.83/x
  3. Step 3: Cross multiply
    14,711.67x = 20,301.61 × 8,422.83
  4. Step 4: Simplify right side
    14,711.67x = 170,997,009.76
  5. Step 5: Solve for x
    x = 170,997,009.76/14,711.67
  6. Step 6: Final answer
    x = 11,623.22

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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.