Home / 9,271.28-12,794.28-5,079.68

Finding the Fourth Proportional to 9,271.28, 12,794.28 and 5,079.68

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Solution

The fourth proportional to 9,271.28, 12,794.28 and 5,079.68 is: 7,009.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,271.28 : 12,794.28 = 5,079.68 : x
  2. Step 2: Convert to fraction form
    9,271.28/12,794.28 = 5,079.68/x
  3. Step 3: Cross multiply
    9,271.28x = 12,794.28 × 5,079.68
  4. Step 4: Simplify right side
    9,271.28x = 64,990,848.23
  5. Step 5: Solve for x
    x = 64,990,848.23/9,271.28
  6. Step 6: Final answer
    x = 7,009.91

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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.