Home / 13,127.52-19,686.51-4,805.10

Finding the Fourth Proportional to 13,127.52, 19,686.51 and 4,805.10

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Solution

The fourth proportional to 13,127.52, 19,686.51 and 4,805.10 is: 7,205.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,127.52 : 19,686.51 = 4,805.10 : x
  2. Step 2: Convert to fraction form
    13,127.52/19,686.51 = 4,805.10/x
  3. Step 3: Cross multiply
    13,127.52x = 19,686.51 × 4,805.10
  4. Step 4: Simplify right side
    13,127.52x = 94,595,649.20
  5. Step 5: Solve for x
    x = 94,595,649.20/13,127.52
  6. Step 6: Final answer
    x = 7,205.90

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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.