Home / 8,618.60-11,898.20-5,800.79

Finding the Fourth Proportional to 8,618.60, 11,898.20 and 5,800.79

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Solution

The fourth proportional to 8,618.60, 11,898.20 and 5,800.79 is: 8,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,618.60 : 11,898.20 = 5,800.79 : x
  2. Step 2: Convert to fraction form
    8,618.60/11,898.20 = 5,800.79/x
  3. Step 3: Cross multiply
    8,618.60x = 11,898.20 × 5,800.79
  4. Step 4: Simplify right side
    8,618.60x = 69,018,871.08
  5. Step 5: Solve for x
    x = 69,018,871.08/8,618.60
  6. Step 6: Final answer
    x = 8,008.13

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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.