Home / 11,459.85-15,822.33-7,159.52

Finding the Fourth Proportional to 11,459.85, 15,822.33 and 7,159.52

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Solution

The fourth proportional to 11,459.85, 15,822.33 and 7,159.52 is: 9,884.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,459.85 : 15,822.33 = 7,159.52 : x
  2. Step 2: Convert to fraction form
    11,459.85/15,822.33 = 7,159.52/x
  3. Step 3: Cross multiply
    11,459.85x = 15,822.33 × 7,159.52
  4. Step 4: Simplify right side
    11,459.85x = 113,280,297.97
  5. Step 5: Solve for x
    x = 113,280,297.97/11,459.85
  6. Step 6: Final answer
    x = 9,884.97

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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.