Home / 14,780.69-20,397.36-11,007.10

Finding the Fourth Proportional to 14,780.69, 20,397.36 and 11,007.10

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Solution

The fourth proportional to 14,780.69, 20,397.36 and 11,007.10 is: 15,189.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,780.69 : 20,397.36 = 11,007.10 : x
  2. Step 2: Convert to fraction form
    14,780.69/20,397.36 = 11,007.10/x
  3. Step 3: Cross multiply
    14,780.69x = 20,397.36 × 11,007.10
  4. Step 4: Simplify right side
    14,780.69x = 224,515,781.26
  5. Step 5: Solve for x
    x = 224,515,781.26/14,780.69
  6. Step 6: Final answer
    x = 15,189.80

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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.