Home / 7,454.21-10,280.52-5,325.80

Finding the Fourth Proportional to 7,454.21, 10,280.52 and 5,325.80

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Solution

The fourth proportional to 7,454.21, 10,280.52 and 5,325.80 is: 7,345.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,454.21 : 10,280.52 = 5,325.80 : x
  2. Step 2: Convert to fraction form
    7,454.21/10,280.52 = 5,325.80/x
  3. Step 3: Cross multiply
    7,454.21x = 10,280.52 × 5,325.80
  4. Step 4: Simplify right side
    7,454.21x = 54,751,942.01
  5. Step 5: Solve for x
    x = 54,751,942.01/7,454.21
  6. Step 6: Final answer
    x = 7,345.11

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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.