Home / 7,818.80-10,789.36-4,461.52

Finding the Fourth Proportional to 7,818.80, 10,789.36 and 4,461.52

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Solution

The fourth proportional to 7,818.80, 10,789.36 and 4,461.52 is: 6,156.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,818.80 : 10,789.36 = 4,461.52 : x
  2. Step 2: Convert to fraction form
    7,818.80/10,789.36 = 4,461.52/x
  3. Step 3: Cross multiply
    7,818.80x = 10,789.36 × 4,461.52
  4. Step 4: Simplify right side
    7,818.80x = 48,136,945.43
  5. Step 5: Solve for x
    x = 48,136,945.43/7,818.80
  6. Step 6: Final answer
    x = 6,156.56

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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.