Home / 7,157.10-9,876.89-4,324.08

Finding the Fourth Proportional to 7,157.10, 9,876.89 and 4,324.08

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Solution

The fourth proportional to 7,157.10, 9,876.89 and 4,324.08 is: 5,967.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157.10 : 9,876.89 = 4,324.08 : x
  2. Step 2: Convert to fraction form
    7,157.10/9,876.89 = 4,324.08/x
  3. Step 3: Cross multiply
    7,157.10x = 9,876.89 × 4,324.08
  4. Step 4: Simplify right side
    7,157.10x = 42,708,413.13
  5. Step 5: Solve for x
    x = 42,708,413.13/7,157.10
  6. Step 6: Final answer
    x = 5,967.28

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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.