Home / 10,338.24-15,485.95-5,392.89

Finding the Fourth Proportional to 10,338.24, 15,485.95 and 5,392.89

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Solution

The fourth proportional to 10,338.24, 15,485.95 and 5,392.89 is: 8,078.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,338.24 : 15,485.95 = 5,392.89 : x
  2. Step 2: Convert to fraction form
    10,338.24/15,485.95 = 5,392.89/x
  3. Step 3: Cross multiply
    10,338.24x = 15,485.95 × 5,392.89
  4. Step 4: Simplify right side
    10,338.24x = 83,514,031.64
  5. Step 5: Solve for x
    x = 83,514,031.64/10,338.24
  6. Step 6: Final answer
    x = 8,078.16

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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.