Home / 9,151.20-12,628.71-4,959.45

Finding the Fourth Proportional to 9,151.20, 12,628.71 and 4,959.45

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Solution

The fourth proportional to 9,151.20, 12,628.71 and 4,959.45 is: 6,844.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,151.20 : 12,628.71 = 4,959.45 : x
  2. Step 2: Convert to fraction form
    9,151.20/12,628.71 = 4,959.45/x
  3. Step 3: Cross multiply
    9,151.20x = 12,628.71 × 4,959.45
  4. Step 4: Simplify right side
    9,151.20x = 62,631,455.81
  5. Step 5: Solve for x
    x = 62,631,455.81/9,151.20
  6. Step 6: Final answer
    x = 6,844.07

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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.