Home / 7,143.20-9,862.48-4,455.46

Finding the Fourth Proportional to 7,143.20, 9,862.48 and 4,455.46

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Solution

The fourth proportional to 7,143.20, 9,862.48 and 4,455.46 is: 6,151.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,143.20 : 9,862.48 = 4,455.46 : x
  2. Step 2: Convert to fraction form
    7,143.20/9,862.48 = 4,455.46/x
  3. Step 3: Cross multiply
    7,143.20x = 9,862.48 × 4,455.46
  4. Step 4: Simplify right side
    7,143.20x = 43,941,885.14
  5. Step 5: Solve for x
    x = 43,941,885.14/7,143.20
  6. Step 6: Final answer
    x = 6,151.57

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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.