Home / 11,392.71-15,710.45-7,615.89

Finding the Fourth Proportional to 11,392.71, 15,710.45 and 7,615.89

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Solution

The fourth proportional to 11,392.71, 15,710.45 and 7,615.89 is: 10,502.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.71 : 15,710.45 = 7,615.89 : x
  2. Step 2: Convert to fraction form
    11,392.71/15,710.45 = 7,615.89/x
  3. Step 3: Cross multiply
    11,392.71x = 15,710.45 × 7,615.89
  4. Step 4: Simplify right side
    11,392.71x = 119,649,020.97
  5. Step 5: Solve for x
    x = 119,649,020.97/11,392.71
  6. Step 6: Final answer
    x = 10,502.24

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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.