Home / 15,301.07-21,117.68-8,496.65

Finding the Fourth Proportional to 15,301.07, 21,117.68 and 8,496.65

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Solution

The fourth proportional to 15,301.07, 21,117.68 and 8,496.65 is: 11,726.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,301.07 : 21,117.68 = 8,496.65 : x
  2. Step 2: Convert to fraction form
    15,301.07/21,117.68 = 8,496.65/x
  3. Step 3: Cross multiply
    15,301.07x = 21,117.68 × 8,496.65
  4. Step 4: Simplify right side
    15,301.07x = 179,429,535.77
  5. Step 5: Solve for x
    x = 179,429,535.77/15,301.07
  6. Step 6: Final answer
    x = 11,726.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.