Home / 15,111.73-20,853.93-8,397.19

Finding the Fourth Proportional to 15,111.73, 20,853.93 and 8,397.19

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Solution

The fourth proportional to 15,111.73, 20,853.93 and 8,397.19 is: 11,587.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,111.73 : 20,853.93 = 8,397.19 : x
  2. Step 2: Convert to fraction form
    15,111.73/20,853.93 = 8,397.19/x
  3. Step 3: Cross multiply
    15,111.73x = 20,853.93 × 8,397.19
  4. Step 4: Simplify right side
    15,111.73x = 175,114,412.46
  5. Step 5: Solve for x
    x = 175,114,412.46/15,111.73
  6. Step 6: Final answer
    x = 11,587.98

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Double scale
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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.