Home / 9,376.79-12,939.50-5,184.23

Finding the Fourth Proportional to 9,376.79, 12,939.50 and 5,184.23

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Solution

The fourth proportional to 9,376.79, 12,939.50 and 5,184.23 is: 7,153.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,376.79 : 12,939.50 = 5,184.23 : x
  2. Step 2: Convert to fraction form
    9,376.79/12,939.50 = 5,184.23/x
  3. Step 3: Cross multiply
    9,376.79x = 12,939.50 × 5,184.23
  4. Step 4: Simplify right side
    9,376.79x = 67,081,318.16
  5. Step 5: Solve for x
    x = 67,081,318.16/9,376.79
  6. Step 6: Final answer
    x = 7,153.97

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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.