Home / 7,839.38-10,818.70-4,695.50

Finding the Fourth Proportional to 7,839.38, 10,818.70 and 4,695.50

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Solution

The fourth proportional to 7,839.38, 10,818.70 and 4,695.50 is: 6,480.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,839.38 : 10,818.70 = 4,695.50 : x
  2. Step 2: Convert to fraction form
    7,839.38/10,818.70 = 4,695.50/x
  3. Step 3: Cross multiply
    7,839.38x = 10,818.70 × 4,695.50
  4. Step 4: Simplify right side
    7,839.38x = 50,799,205.85
  5. Step 5: Solve for x
    x = 50,799,205.85/7,839.38
  6. Step 6: Final answer
    x = 6,480.00

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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.