Home / 12,580.16-17,359.40-7,543.44

Finding the Fourth Proportional to 12,580.16, 17,359.40 and 7,543.44

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Solution

The fourth proportional to 12,580.16, 17,359.40 and 7,543.44 is: 10,409.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.16 : 17,359.40 = 7,543.44 : x
  2. Step 2: Convert to fraction form
    12,580.16/17,359.40 = 7,543.44/x
  3. Step 3: Cross multiply
    12,580.16x = 17,359.40 × 7,543.44
  4. Step 4: Simplify right side
    12,580.16x = 130,949,592.34
  5. Step 5: Solve for x
    x = 130,949,592.34/12,580.16
  6. Step 6: Final answer
    x = 10,409.22

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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.