Home / 15,806.04-23,710.68-5,129.76

Finding the Fourth Proportional to 15,806.04, 23,710.68 and 5,129.76

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Solution

The fourth proportional to 15,806.04, 23,710.68 and 5,129.76 is: 7,695.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,806.04 : 23,710.68 = 5,129.76 : x
  2. Step 2: Convert to fraction form
    15,806.04/23,710.68 = 5,129.76/x
  3. Step 3: Cross multiply
    15,806.04x = 23,710.68 × 5,129.76
  4. Step 4: Simplify right side
    15,806.04x = 121,630,097.84
  5. Step 5: Solve for x
    x = 121,630,097.84/15,806.04
  6. Step 6: Final answer
    x = 7,695.17

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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.