Home / 9,151.38-12,628.90-4,959.63

Finding the Fourth Proportional to 9,151.38, 12,628.90 and 4,959.63

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Solution

The fourth proportional to 9,151.38, 12,628.90 and 4,959.63 is: 6,844.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.38 : 12,628.90 = 4,959.63 : x
  2. Step 2: Convert to fraction form
    9,151.38/12,628.90 = 4,959.63/x
  3. Step 3: Cross multiply
    9,151.38x = 12,628.90 × 4,959.63
  4. Step 4: Simplify right side
    9,151.38x = 62,634,608.16
  5. Step 5: Solve for x
    x = 62,634,608.16/9,151.38
  6. Step 6: Final answer
    x = 6,844.28

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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.