Home / 15,480.49-21,364.40-8,767.30

Finding the Fourth Proportional to 15,480.49, 21,364.40 and 8,767.30

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Solution

The fourth proportional to 15,480.49, 21,364.40 and 8,767.30 is: 12,099.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,480.49 : 21,364.40 = 8,767.30 : x
  2. Step 2: Convert to fraction form
    15,480.49/21,364.40 = 8,767.30/x
  3. Step 3: Cross multiply
    15,480.49x = 21,364.40 × 8,767.30
  4. Step 4: Simplify right side
    15,480.49x = 187,308,104.12
  5. Step 5: Solve for x
    x = 187,308,104.12/15,480.49
  6. Step 6: Final answer
    x = 12,099.62

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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.