Home / 10,385.48-15,579.14-3,810.11

Finding the Fourth Proportional to 10,385.48, 15,579.14 and 3,810.11

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Solution

The fourth proportional to 10,385.48, 15,579.14 and 3,810.11 is: 5,715.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.48 : 15,579.14 = 3,810.11 : x
  2. Step 2: Convert to fraction form
    10,385.48/15,579.14 = 3,810.11/x
  3. Step 3: Cross multiply
    10,385.48x = 15,579.14 × 3,810.11
  4. Step 4: Simplify right side
    10,385.48x = 59,358,140.16
  5. Step 5: Solve for x
    x = 59,358,140.16/10,385.48
  6. Step 6: Final answer
    x = 5,715.49

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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.