Home / 9,122.79-12,589.46-4,931.04

Finding the Fourth Proportional to 9,122.79, 12,589.46 and 4,931.04

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Solution

The fourth proportional to 9,122.79, 12,589.46 and 4,931.04 is: 6,804.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,122.79 : 12,589.46 = 4,931.04 : x
  2. Step 2: Convert to fraction form
    9,122.79/12,589.46 = 4,931.04/x
  3. Step 3: Cross multiply
    9,122.79x = 12,589.46 × 4,931.04
  4. Step 4: Simplify right side
    9,122.79x = 62,079,171.89
  5. Step 5: Solve for x
    x = 62,079,171.89/9,122.79
  6. Step 6: Final answer
    x = 6,804.84

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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.