Home / 11,548.80-15,941.44-7,071.52

Finding the Fourth Proportional to 11,548.80, 15,941.44 and 7,071.52

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Solution

The fourth proportional to 11,548.80, 15,941.44 and 7,071.52 is: 9,761.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,548.80 : 15,941.44 = 7,071.52 : x
  2. Step 2: Convert to fraction form
    11,548.80/15,941.44 = 7,071.52/x
  3. Step 3: Cross multiply
    11,548.80x = 15,941.44 × 7,071.52
  4. Step 4: Simplify right side
    11,548.80x = 112,730,211.79
  5. Step 5: Solve for x
    x = 112,730,211.79/11,548.80
  6. Step 6: Final answer
    x = 9,761.21

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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.