Home / 10,578.13-15,863.10-5,645.08

Finding the Fourth Proportional to 10,578.13, 15,863.10 and 5,645.08

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Solution

The fourth proportional to 10,578.13, 15,863.10 and 5,645.08 is: 8,465.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,578.13 : 15,863.10 = 5,645.08 : x
  2. Step 2: Convert to fraction form
    10,578.13/15,863.10 = 5,645.08/x
  3. Step 3: Cross multiply
    10,578.13x = 15,863.10 × 5,645.08
  4. Step 4: Simplify right side
    10,578.13x = 89,548,440.32
  5. Step 5: Solve for x
    x = 89,548,440.32/10,578.13
  6. Step 6: Final answer
    x = 8,465.43

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1.5x scale

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.