Home / 10,107.70-15,138.48-8,925.18

Finding the Fourth Proportional to 10,107.70, 15,138.48 and 8,925.18

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Solution

The fourth proportional to 10,107.70, 15,138.48 and 8,925.18 is: 13,367.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,107.70 : 15,138.48 = 8,925.18 : x
  2. Step 2: Convert to fraction form
    10,107.70/15,138.48 = 8,925.18/x
  3. Step 3: Cross multiply
    10,107.70x = 15,138.48 × 8,925.18
  4. Step 4: Simplify right side
    10,107.70x = 135,113,697.59
  5. Step 5: Solve for x
    x = 135,113,697.59/10,107.70
  6. Step 6: Final answer
    x = 13,367.40

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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.