Home / 18,389.76-27,560.40-7,290.39

Finding the Fourth Proportional to 18,389.76, 27,560.40 and 7,290.39

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Solution

The fourth proportional to 18,389.76, 27,560.40 and 7,290.39 is: 10,925.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,389.76 : 27,560.40 = 7,290.39 : x
  2. Step 2: Convert to fraction form
    18,389.76/27,560.40 = 7,290.39/x
  3. Step 3: Cross multiply
    18,389.76x = 27,560.40 × 7,290.39
  4. Step 4: Simplify right side
    18,389.76x = 200,926,064.56
  5. Step 5: Solve for x
    x = 200,926,064.56/18,389.76
  6. Step 6: Final answer
    x = 10,925.98

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.