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Finding the Fourth Proportional to 8,601.81, 12,870.10 and 5,093.70

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Solution

The fourth proportional to 8,601.81, 12,870.10 and 5,093.70 is: 7,621.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,601.81 : 12,870.10 = 5,093.70 : x
  2. Step 2: Convert to fraction form
    8,601.81/12,870.10 = 5,093.70/x
  3. Step 3: Cross multiply
    8,601.81x = 12,870.10 × 5,093.70
  4. Step 4: Simplify right side
    8,601.81x = 65,556,386.47
  5. Step 5: Solve for x
    x = 65,556,386.47/8,601.81
  6. Step 6: Final answer
    x = 7,621.23

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.