Home / 10,291.57-15,437.21-2,500.45

Finding the Fourth Proportional to 10,291.57, 15,437.21 and 2,500.45

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Solution

The fourth proportional to 10,291.57, 15,437.21 and 2,500.45 is: 3,750.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,291.57 : 15,437.21 = 2,500.45 : x
  2. Step 2: Convert to fraction form
    10,291.57/15,437.21 = 2,500.45/x
  3. Step 3: Cross multiply
    10,291.57x = 15,437.21 × 2,500.45
  4. Step 4: Simplify right side
    10,291.57x = 38,599,971.74
  5. Step 5: Solve for x
    x = 38,599,971.74/10,291.57
  6. Step 6: Final answer
    x = 3,750.64

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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.