Home / 10,287.16-15,430.74-2,495.97

Finding the Fourth Proportional to 10,287.16, 15,430.74 and 2,495.97

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Solution

The fourth proportional to 10,287.16, 15,430.74 and 2,495.97 is: 3,743.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.16 : 15,430.74 = 2,495.97 : x
  2. Step 2: Convert to fraction form
    10,287.16/15,430.74 = 2,495.97/x
  3. Step 3: Cross multiply
    10,287.16x = 15,430.74 × 2,495.97
  4. Step 4: Simplify right side
    10,287.16x = 38,514,654.76
  5. Step 5: Solve for x
    x = 38,514,654.76/10,287.16
  6. Step 6: Final answer
    x = 3,743.96

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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.