Home / 12,585.60-17,338.14-8,801.70

Finding the Fourth Proportional to 12,585.60, 17,338.14 and 8,801.70

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Solution

The fourth proportional to 12,585.60, 17,338.14 and 8,801.70 is: 12,125.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,585.60 : 17,338.14 = 8,801.70 : x
  2. Step 2: Convert to fraction form
    12,585.60/17,338.14 = 8,801.70/x
  3. Step 3: Cross multiply
    12,585.60x = 17,338.14 × 8,801.70
  4. Step 4: Simplify right side
    12,585.60x = 152,605,106.84
  5. Step 5: Solve for x
    x = 152,605,106.84/12,585.60
  6. Step 6: Final answer
    x = 12,125.37

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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.