Home / 14,006.10-21,009.15-11,543.70

Finding the Fourth Proportional to 14,006.10, 21,009.15 and 11,543.70

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Solution

The fourth proportional to 14,006.10, 21,009.15 and 11,543.70 is: 17,315.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,006.10 : 21,009.15 = 11,543.70 : x
  2. Step 2: Convert to fraction form
    14,006.10/21,009.15 = 11,543.70/x
  3. Step 3: Cross multiply
    14,006.10x = 21,009.15 × 11,543.70
  4. Step 4: Simplify right side
    14,006.10x = 242,523,324.86
  5. Step 5: Solve for x
    x = 242,523,324.86/14,006.10
  6. Step 6: Final answer
    x = 17,315.55

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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.