Home / 9,280.28-12,808.04-5,697.36

Finding the Fourth Proportional to 9,280.28, 12,808.04 and 5,697.36

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Solution

The fourth proportional to 9,280.28, 12,808.04 and 5,697.36 is: 7,863.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280.28 : 12,808.04 = 5,697.36 : x
  2. Step 2: Convert to fraction form
    9,280.28/12,808.04 = 5,697.36/x
  3. Step 3: Cross multiply
    9,280.28x = 12,808.04 × 5,697.36
  4. Step 4: Simplify right side
    9,280.28x = 72,972,014.77
  5. Step 5: Solve for x
    x = 72,972,014.77/9,280.28
  6. Step 6: Final answer
    x = 7,863.13

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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.