Home / 10,386.23-15,579.36-5,778.95

Finding the Fourth Proportional to 10,386.23, 15,579.36 and 5,778.95

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Solution

The fourth proportional to 10,386.23, 15,579.36 and 5,778.95 is: 8,668.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,386.23 : 15,579.36 = 5,778.95 : x
  2. Step 2: Convert to fraction form
    10,386.23/15,579.36 = 5,778.95/x
  3. Step 3: Cross multiply
    10,386.23x = 15,579.36 × 5,778.95
  4. Step 4: Simplify right side
    10,386.23x = 90,032,264.58
  5. Step 5: Solve for x
    x = 90,032,264.58/10,386.23
  6. Step 6: Final answer
    x = 8,668.43

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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.