Home / 10,988.79-15,164.54-6,514.75

Finding the Fourth Proportional to 10,988.79, 15,164.54 and 6,514.75

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Solution

The fourth proportional to 10,988.79, 15,164.54 and 6,514.75 is: 8,990.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,988.79 : 15,164.54 = 6,514.75 : x
  2. Step 2: Convert to fraction form
    10,988.79/15,164.54 = 6,514.75/x
  3. Step 3: Cross multiply
    10,988.79x = 15,164.54 × 6,514.75
  4. Step 4: Simplify right side
    10,988.79x = 98,793,186.97
  5. Step 5: Solve for x
    x = 98,793,186.97/10,988.79
  6. Step 6: Final answer
    x = 8,990.36

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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.