Home / 12,275.00-18,412.52-3,509.91

Finding the Fourth Proportional to 12,275.00, 18,412.52 and 3,509.91

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Solution

The fourth proportional to 12,275.00, 18,412.52 and 3,509.91 is: 5,264.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,275.00 : 18,412.52 = 3,509.91 : x
  2. Step 2: Convert to fraction form
    12,275.00/18,412.52 = 3,509.91/x
  3. Step 3: Cross multiply
    12,275.00x = 18,412.52 × 3,509.91
  4. Step 4: Simplify right side
    12,275.00x = 64,626,270.52
  5. Step 5: Solve for x
    x = 64,626,270.52/12,275.00
  6. Step 6: Final answer
    x = 5,264.87

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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.