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Finding the Fourth Proportional to 9,280.99, 12,808.29 and 5,506.39

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Solution

The fourth proportional to 9,280.99, 12,808.29 and 5,506.39 is: 7,599.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,280.99 : 12,808.29 = 5,506.39 : x
  2. Step 2: Convert to fraction form
    9,280.99/12,808.29 = 5,506.39/x
  3. Step 3: Cross multiply
    9,280.99x = 12,808.29 × 5,506.39
  4. Step 4: Simplify right side
    9,280.99x = 70,527,439.97
  5. Step 5: Solve for x
    x = 70,527,439.97/9,280.99
  6. Step 6: Final answer
    x = 7,599.13

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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.