Home / 13,107.60-19,622.75-8,657.10

Finding the Fourth Proportional to 13,107.60, 19,622.75 and 8,657.10

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Solution

The fourth proportional to 13,107.60, 19,622.75 and 8,657.10 is: 12,960.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,107.60 : 19,622.75 = 8,657.10 : x
  2. Step 2: Convert to fraction form
    13,107.60/19,622.75 = 8,657.10/x
  3. Step 3: Cross multiply
    13,107.60x = 19,622.75 × 8,657.10
  4. Step 4: Simplify right side
    13,107.60x = 169,876,065.74
  5. Step 5: Solve for x
    x = 169,876,065.74/13,107.60
  6. Step 6: Final answer
    x = 12,960.12

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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.