Home / 11,167.19-15,392.76-7,581.05

Finding the Fourth Proportional to 11,167.19, 15,392.76 and 7,581.05

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Solution

The fourth proportional to 11,167.19, 15,392.76 and 7,581.05 is: 10,449.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,167.19 : 15,392.76 = 7,581.05 : x
  2. Step 2: Convert to fraction form
    11,167.19/15,392.76 = 7,581.05/x
  3. Step 3: Cross multiply
    11,167.19x = 15,392.76 × 7,581.05
  4. Step 4: Simplify right side
    11,167.19x = 116,693,283.20
  5. Step 5: Solve for x
    x = 116,693,283.20/11,167.19
  6. Step 6: Final answer
    x = 10,449.66

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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.