Home / 10,530.12-15,785.88-4,295.34

Finding the Fourth Proportional to 10,530.12, 15,785.88 and 4,295.34

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Solution

The fourth proportional to 10,530.12, 15,785.88 and 4,295.34 is: 6,439.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,530.12 : 15,785.88 = 4,295.34 : x
  2. Step 2: Convert to fraction form
    10,530.12/15,785.88 = 4,295.34/x
  3. Step 3: Cross multiply
    10,530.12x = 15,785.88 × 4,295.34
  4. Step 4: Simplify right side
    10,530.12x = 67,805,721.80
  5. Step 5: Solve for x
    x = 67,805,721.80/10,530.12
  6. Step 6: Final answer
    x = 6,439.22

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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.