Home / 18,916.41-28,373.58-5,767.68

Finding the Fourth Proportional to 18,916.41, 28,373.58 and 5,767.68

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Solution

The fourth proportional to 18,916.41, 28,373.58 and 5,767.68 is: 8,651.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,916.41 : 28,373.58 = 5,767.68 : x
  2. Step 2: Convert to fraction form
    18,916.41/28,373.58 = 5,767.68/x
  3. Step 3: Cross multiply
    18,916.41x = 28,373.58 × 5,767.68
  4. Step 4: Simplify right side
    18,916.41x = 163,649,729.89
  5. Step 5: Solve for x
    x = 163,649,729.89/18,916.41
  6. Step 6: Final answer
    x = 8,651.20

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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.