Home / 9,147.28-12,623.30-4,955.53

Finding the Fourth Proportional to 9,147.28, 12,623.30 and 4,955.53

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Solution

The fourth proportional to 9,147.28, 12,623.30 and 4,955.53 is: 6,838.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,147.28 : 12,623.30 = 4,955.53 : x
  2. Step 2: Convert to fraction form
    9,147.28/12,623.30 = 4,955.53/x
  3. Step 3: Cross multiply
    9,147.28x = 12,623.30 × 4,955.53
  4. Step 4: Simplify right side
    9,147.28x = 62,555,141.85
  5. Step 5: Solve for x
    x = 62,555,141.85/9,147.28
  6. Step 6: Final answer
    x = 6,838.66

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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.