Home / 15,417.06-21,275.76-8,343.49

Finding the Fourth Proportional to 15,417.06, 21,275.76 and 8,343.49

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Solution

The fourth proportional to 15,417.06, 21,275.76 and 8,343.49 is: 11,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.06 : 21,275.76 = 8,343.49 : x
  2. Step 2: Convert to fraction form
    15,417.06/21,275.76 = 8,343.49/x
  3. Step 3: Cross multiply
    15,417.06x = 21,275.76 × 8,343.49
  4. Step 4: Simplify right side
    15,417.06x = 177,513,942.71
  5. Step 5: Solve for x
    x = 177,513,942.71/15,417.06
  6. Step 6: Final answer
    x = 11,514.12

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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.