Home / 7,146.10-10,715.55-4,225.30

Finding the Fourth Proportional to 7,146.10, 10,715.55 and 4,225.30

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Solution

The fourth proportional to 7,146.10, 10,715.55 and 4,225.30 is: 6,335.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.10 : 10,715.55 = 4,225.30 : x
  2. Step 2: Convert to fraction form
    7,146.10/10,715.55 = 4,225.30/x
  3. Step 3: Cross multiply
    7,146.10x = 10,715.55 × 4,225.30
  4. Step 4: Simplify right side
    7,146.10x = 45,276,413.42
  5. Step 5: Solve for x
    x = 45,276,413.42/7,146.10
  6. Step 6: Final answer
    x = 6,335.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.