Home / 13,278.92-18,325.02-7,310.62

Finding the Fourth Proportional to 13,278.92, 18,325.02 and 7,310.62

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Solution

The fourth proportional to 13,278.92, 18,325.02 and 7,310.62 is: 10,088.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,278.92 : 18,325.02 = 7,310.62 : x
  2. Step 2: Convert to fraction form
    13,278.92/18,325.02 = 7,310.62/x
  3. Step 3: Cross multiply
    13,278.92x = 18,325.02 × 7,310.62
  4. Step 4: Simplify right side
    13,278.92x = 133,967,257.71
  5. Step 5: Solve for x
    x = 133,967,257.71/13,278.92
  6. Step 6: Final answer
    x = 10,088.72

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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.