Home / 15,280.33-21,088.16-8,822.05

Finding the Fourth Proportional to 15,280.33, 21,088.16 and 8,822.05

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Solution

The fourth proportional to 15,280.33, 21,088.16 and 8,822.05 is: 12,175.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,280.33 : 21,088.16 = 8,822.05 : x
  2. Step 2: Convert to fraction form
    15,280.33/21,088.16 = 8,822.05/x
  3. Step 3: Cross multiply
    15,280.33x = 21,088.16 × 8,822.05
  4. Step 4: Simplify right side
    15,280.33x = 186,040,801.93
  5. Step 5: Solve for x
    x = 186,040,801.93/15,280.33
  6. Step 6: Final answer
    x = 12,175.18

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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.