Home / 8,478.57-12,718.01-2,635.34

Finding the Fourth Proportional to 8,478.57, 12,718.01 and 2,635.34

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Solution

The fourth proportional to 8,478.57, 12,718.01 and 2,635.34 is: 3,953.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,478.57 : 12,718.01 = 2,635.34 : x
  2. Step 2: Convert to fraction form
    8,478.57/12,718.01 = 2,635.34/x
  3. Step 3: Cross multiply
    8,478.57x = 12,718.01 × 2,635.34
  4. Step 4: Simplify right side
    8,478.57x = 33,516,223.47
  5. Step 5: Solve for x
    x = 33,516,223.47/8,478.57
  6. Step 6: Final answer
    x = 3,953.05

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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.