Home / 10,287.63-15,422.43-4,948.13

Finding the Fourth Proportional to 10,287.63, 15,422.43 and 4,948.13

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Solution

The fourth proportional to 10,287.63, 15,422.43 and 4,948.13 is: 7,417.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,287.63 : 15,422.43 = 4,948.13 : x
  2. Step 2: Convert to fraction form
    10,287.63/15,422.43 = 4,948.13/x
  3. Step 3: Cross multiply
    10,287.63x = 15,422.43 × 4,948.13
  4. Step 4: Simplify right side
    10,287.63x = 76,312,188.56
  5. Step 5: Solve for x
    x = 76,312,188.56/10,287.63
  6. Step 6: Final answer
    x = 7,417.86

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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.