Home / 10,282.80-15,430.36-4,359.36

Finding the Fourth Proportional to 10,282.80, 15,430.36 and 4,359.36

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Solution

The fourth proportional to 10,282.80, 15,430.36 and 4,359.36 is: 6,541.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,282.80 : 15,430.36 = 4,359.36 : x
  2. Step 2: Convert to fraction form
    10,282.80/15,430.36 = 4,359.36/x
  3. Step 3: Cross multiply
    10,282.80x = 15,430.36 × 4,359.36
  4. Step 4: Simplify right side
    10,282.80x = 67,266,494.17
  5. Step 5: Solve for x
    x = 67,266,494.17/10,282.80
  6. Step 6: Final answer
    x = 6,541.65

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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.