Home / 15,417.03-21,275.56-8,343.46

Finding the Fourth Proportional to 15,417.03, 21,275.56 and 8,343.46

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Solution

The fourth proportional to 15,417.03, 21,275.56 and 8,343.46 is: 11,514.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.03 : 21,275.56 = 8,343.46 : x
  2. Step 2: Convert to fraction form
    15,417.03/21,275.56 = 8,343.46/x
  3. Step 3: Cross multiply
    15,417.03x = 21,275.56 × 8,343.46
  4. Step 4: Simplify right side
    15,417.03x = 177,511,701.19
  5. Step 5: Solve for x
    x = 177,511,701.19/15,417.03
  6. Step 6: Final answer
    x = 11,514.00

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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.