Home / 9,403.73-12,977.07-5,155.03

Finding the Fourth Proportional to 9,403.73, 12,977.07 and 5,155.03

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Solution

The fourth proportional to 9,403.73, 12,977.07 and 5,155.03 is: 7,113.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,403.73 : 12,977.07 = 5,155.03 : x
  2. Step 2: Convert to fraction form
    9,403.73/12,977.07 = 5,155.03/x
  3. Step 3: Cross multiply
    9,403.73x = 12,977.07 × 5,155.03
  4. Step 4: Simplify right side
    9,403.73x = 66,897,182.05
  5. Step 5: Solve for x
    x = 66,897,182.05/9,403.73
  6. Step 6: Final answer
    x = 7,113.90

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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.