Home / 14,722.10-20,311.61-8,347.91

Finding the Fourth Proportional to 14,722.10, 20,311.61 and 8,347.91

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Solution

The fourth proportional to 14,722.10, 20,311.61 and 8,347.91 is: 11,517.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,722.10 : 20,311.61 = 8,347.91 : x
  2. Step 2: Convert to fraction form
    14,722.10/20,311.61 = 8,347.91/x
  3. Step 3: Cross multiply
    14,722.10x = 20,311.61 × 8,347.91
  4. Step 4: Simplify right side
    14,722.10x = 169,559,510.15
  5. Step 5: Solve for x
    x = 169,559,510.15/14,722.10
  6. Step 6: Final answer
    x = 11,517.34

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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.