Home / 7,146.63-9,862.56-4,002.75

Finding the Fourth Proportional to 7,146.63, 9,862.56 and 4,002.75

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Solution

The fourth proportional to 7,146.63, 9,862.56 and 4,002.75 is: 5,523.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,146.63 : 9,862.56 = 4,002.75 : x
  2. Step 2: Convert to fraction form
    7,146.63/9,862.56 = 4,002.75/x
  3. Step 3: Cross multiply
    7,146.63x = 9,862.56 × 4,002.75
  4. Step 4: Simplify right side
    7,146.63x = 39,477,362.04
  5. Step 5: Solve for x
    x = 39,477,362.04/7,146.63
  6. Step 6: Final answer
    x = 5,523.91

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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.