Home / 7,117.51-9,821.60-4,132.85

Finding the Fourth Proportional to 7,117.51, 9,821.60 and 4,132.85

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Solution

The fourth proportional to 7,117.51, 9,821.60 and 4,132.85 is: 5,703.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,117.51 : 9,821.60 = 4,132.85 : x
  2. Step 2: Convert to fraction form
    7,117.51/9,821.60 = 4,132.85/x
  3. Step 3: Cross multiply
    7,117.51x = 9,821.60 × 4,132.85
  4. Step 4: Simplify right side
    7,117.51x = 40,591,178.90
  5. Step 5: Solve for x
    x = 40,591,178.90/7,117.51
  6. Step 6: Final answer
    x = 5,703.01

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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.