Home / 15,417.77-21,276.48-8,344.18

Finding the Fourth Proportional to 15,417.77, 21,276.48 and 8,344.18

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Solution

The fourth proportional to 15,417.77, 21,276.48 and 8,344.18 is: 11,514.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,417.77 : 21,276.48 = 8,344.18 : x
  2. Step 2: Convert to fraction form
    15,417.77/21,276.48 = 8,344.18/x
  3. Step 3: Cross multiply
    15,417.77x = 21,276.48 × 8,344.18
  4. Step 4: Simplify right side
    15,417.77x = 177,534,725.70
  5. Step 5: Solve for x
    x = 177,534,725.70/15,417.77
  6. Step 6: Final answer
    x = 11,514.94

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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.