Home / 11,218.60-15,482.82-6,743.80

Finding the Fourth Proportional to 11,218.60, 15,482.82 and 6,743.80

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Solution

The fourth proportional to 11,218.60, 15,482.82 and 6,743.80 is: 9,307.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,218.60 : 15,482.82 = 6,743.80 : x
  2. Step 2: Convert to fraction form
    11,218.60/15,482.82 = 6,743.80/x
  3. Step 3: Cross multiply
    11,218.60x = 15,482.82 × 6,743.80
  4. Step 4: Simplify right side
    11,218.60x = 104,413,041.52
  5. Step 5: Solve for x
    x = 104,413,041.52/11,218.60
  6. Step 6: Final answer
    x = 9,307.14

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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.