Home / 11,392.74-15,720.10-7,609.84

Finding the Fourth Proportional to 11,392.74, 15,720.10 and 7,609.84

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Solution

The fourth proportional to 11,392.74, 15,720.10 and 7,609.84 is: 10,500.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,392.74 : 15,720.10 = 7,609.84 : x
  2. Step 2: Convert to fraction form
    11,392.74/15,720.10 = 7,609.84/x
  3. Step 3: Cross multiply
    11,392.74x = 15,720.10 × 7,609.84
  4. Step 4: Simplify right side
    11,392.74x = 119,627,387.46
  5. Step 5: Solve for x
    x = 119,627,387.46/11,392.74
  6. Step 6: Final answer
    x = 10,500.32

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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.