Home / 10,140.14-13,977.51-9,325.48

Finding the Fourth Proportional to 10,140.14, 13,977.51 and 9,325.48

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Solution

The fourth proportional to 10,140.14, 13,977.51 and 9,325.48 is: 12,854.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,140.14 : 13,977.51 = 9,325.48 : x
  2. Step 2: Convert to fraction form
    10,140.14/13,977.51 = 9,325.48/x
  3. Step 3: Cross multiply
    10,140.14x = 13,977.51 × 9,325.48
  4. Step 4: Simplify right side
    10,140.14x = 130,346,998.70
  5. Step 5: Solve for x
    x = 130,346,998.70/10,140.14
  6. Step 6: Final answer
    x = 12,854.56

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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.