Home / 9,114.28-12,582.44-6,145.72

Finding the Fourth Proportional to 9,114.28, 12,582.44 and 6,145.72

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Solution

The fourth proportional to 9,114.28, 12,582.44 and 6,145.72 is: 8,484.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,114.28 : 12,582.44 = 6,145.72 : x
  2. Step 2: Convert to fraction form
    9,114.28/12,582.44 = 6,145.72/x
  3. Step 3: Cross multiply
    9,114.28x = 12,582.44 × 6,145.72
  4. Step 4: Simplify right side
    9,114.28x = 77,328,153.16
  5. Step 5: Solve for x
    x = 77,328,153.16/9,114.28
  6. Step 6: Final answer
    x = 8,484.29

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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.