Home / 7,350.25-10,143.53-4,207.45

Finding the Fourth Proportional to 7,350.25, 10,143.53 and 4,207.45

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Solution

The fourth proportional to 7,350.25, 10,143.53 and 4,207.45 is: 5,806.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,350.25 : 10,143.53 = 4,207.45 : x
  2. Step 2: Convert to fraction form
    7,350.25/10,143.53 = 4,207.45/x
  3. Step 3: Cross multiply
    7,350.25x = 10,143.53 × 4,207.45
  4. Step 4: Simplify right side
    7,350.25x = 42,678,355.10
  5. Step 5: Solve for x
    x = 42,678,355.10/7,350.25
  6. Step 6: Final answer
    x = 5,806.39

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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.