Home / 10,548.40-15,830.38-5,001.72

Finding the Fourth Proportional to 10,548.40, 15,830.38 and 5,001.72

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Solution

The fourth proportional to 10,548.40, 15,830.38 and 5,001.72 is: 7,506.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,548.40 : 15,830.38 = 5,001.72 : x
  2. Step 2: Convert to fraction form
    10,548.40/15,830.38 = 5,001.72/x
  3. Step 3: Cross multiply
    10,548.40x = 15,830.38 × 5,001.72
  4. Step 4: Simplify right side
    10,548.40x = 79,179,128.25
  5. Step 5: Solve for x
    x = 79,179,128.25/10,548.40
  6. Step 6: Final answer
    x = 7,506.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.