Home / 15,287.27-21,085.38-9,319.19

Finding the Fourth Proportional to 15,287.27, 21,085.38 and 9,319.19

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Solution

The fourth proportional to 15,287.27, 21,085.38 and 9,319.19 is: 12,853.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,287.27 : 21,085.38 = 9,319.19 : x
  2. Step 2: Convert to fraction form
    15,287.27/21,085.38 = 9,319.19/x
  3. Step 3: Cross multiply
    15,287.27x = 21,085.38 × 9,319.19
  4. Step 4: Simplify right side
    15,287.27x = 196,498,557.02
  5. Step 5: Solve for x
    x = 196,498,557.02/15,287.27
  6. Step 6: Final answer
    x = 12,853.74

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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.