Home / 10,148.12-15,211.06-5,218.02

Finding the Fourth Proportional to 10,148.12, 15,211.06 and 5,218.02

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Solution

The fourth proportional to 10,148.12, 15,211.06 and 5,218.02 is: 7,821.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,148.12 : 15,211.06 = 5,218.02 : x
  2. Step 2: Convert to fraction form
    10,148.12/15,211.06 = 5,218.02/x
  3. Step 3: Cross multiply
    10,148.12x = 15,211.06 × 5,218.02
  4. Step 4: Simplify right side
    10,148.12x = 79,371,602.26
  5. Step 5: Solve for x
    x = 79,371,602.26/10,148.12
  6. Step 6: Final answer
    x = 7,821.31

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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.