Home / 9,332.40-12,878.60-5,140.56

Finding the Fourth Proportional to 9,332.40, 12,878.60 and 5,140.56

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Solution

The fourth proportional to 9,332.40, 12,878.60 and 5,140.56 is: 7,093.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,332.40 : 12,878.60 = 5,140.56 : x
  2. Step 2: Convert to fraction form
    9,332.40/12,878.60 = 5,140.56/x
  3. Step 3: Cross multiply
    9,332.40x = 12,878.60 × 5,140.56
  4. Step 4: Simplify right side
    9,332.40x = 66,203,216.02
  5. Step 5: Solve for x
    x = 66,203,216.02/9,332.40
  6. Step 6: Final answer
    x = 7,093.91

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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.