Home / 9,419.30-12,984.76-7,177.29

Finding the Fourth Proportional to 9,419.30, 12,984.76 and 7,177.29

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Solution

The fourth proportional to 9,419.30, 12,984.76 and 7,177.29 is: 9,894.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,419.30 : 12,984.76 = 7,177.29 : x
  2. Step 2: Convert to fraction form
    9,419.30/12,984.76 = 7,177.29/x
  3. Step 3: Cross multiply
    9,419.30x = 12,984.76 × 7,177.29
  4. Step 4: Simplify right side
    9,419.30x = 93,195,287.29
  5. Step 5: Solve for x
    x = 93,195,287.29/9,419.30
  6. Step 6: Final answer
    x = 9,894.08

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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.