Home / 8,816.49-12,166.29-5,280.03

Finding the Fourth Proportional to 8,816.49, 12,166.29 and 5,280.03

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Solution

The fourth proportional to 8,816.49, 12,166.29 and 5,280.03 is: 7,286.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,816.49 : 12,166.29 = 5,280.03 : x
  2. Step 2: Convert to fraction form
    8,816.49/12,166.29 = 5,280.03/x
  3. Step 3: Cross multiply
    8,816.49x = 12,166.29 × 5,280.03
  4. Step 4: Simplify right side
    8,816.49x = 64,238,376.19
  5. Step 5: Solve for x
    x = 64,238,376.19/8,816.49
  6. Step 6: Final answer
    x = 7,286.16

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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.