Home / 10,385.64-15,569.19-3,810.30

Finding the Fourth Proportional to 10,385.64, 15,569.19 and 3,810.30

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Solution

The fourth proportional to 10,385.64, 15,569.19 and 3,810.30 is: 5,712.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,385.64 : 15,569.19 = 3,810.30 : x
  2. Step 2: Convert to fraction form
    10,385.64/15,569.19 = 3,810.30/x
  3. Step 3: Cross multiply
    10,385.64x = 15,569.19 × 3,810.30
  4. Step 4: Simplify right side
    10,385.64x = 59,323,284.66
  5. Step 5: Solve for x
    x = 59,323,284.66/10,385.64
  6. Step 6: Final answer
    x = 5,712.05

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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.