Home / 10,122.98-15,180.28-3,547.60

Finding the Fourth Proportional to 10,122.98, 15,180.28 and 3,547.60

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Solution

The fourth proportional to 10,122.98, 15,180.28 and 3,547.60 is: 5,319.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,122.98 : 15,180.28 = 3,547.60 : x
  2. Step 2: Convert to fraction form
    10,122.98/15,180.28 = 3,547.60/x
  3. Step 3: Cross multiply
    10,122.98x = 15,180.28 × 3,547.60
  4. Step 4: Simplify right side
    10,122.98x = 53,853,514.51
  5. Step 5: Solve for x
    x = 53,853,514.51/10,122.98
  6. Step 6: Final answer
    x = 5,319.93

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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.