Home / 15,129.94-22,703.79-5,271.35

Finding the Fourth Proportional to 15,129.94, 22,703.79 and 5,271.35

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Solution

The fourth proportional to 15,129.94, 22,703.79 and 5,271.35 is: 7,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,129.94 : 22,703.79 = 5,271.35 : x
  2. Step 2: Convert to fraction form
    15,129.94/22,703.79 = 5,271.35/x
  3. Step 3: Cross multiply
    15,129.94x = 22,703.79 × 5,271.35
  4. Step 4: Simplify right side
    15,129.94x = 119,679,721.23
  5. Step 5: Solve for x
    x = 119,679,721.23/15,129.94
  6. Step 6: Final answer
    x = 7,910.13

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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.