Home / 9,278.65-12,803.97-5,299.22

Finding the Fourth Proportional to 9,278.65, 12,803.97 and 5,299.22

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Solution

The fourth proportional to 9,278.65, 12,803.97 and 5,299.22 is: 7,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,278.65 : 12,803.97 = 5,299.22 : x
  2. Step 2: Convert to fraction form
    9,278.65/12,803.97 = 5,299.22/x
  3. Step 3: Cross multiply
    9,278.65x = 12,803.97 × 5,299.22
  4. Step 4: Simplify right side
    9,278.65x = 67,851,105.79
  5. Step 5: Solve for x
    x = 67,851,105.79/9,278.65
  6. Step 6: Final answer
    x = 7,312.60

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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.