Home / 15,522.02-21,420.88-8,448.92

Finding the Fourth Proportional to 15,522.02, 21,420.88 and 8,448.92

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Solution

The fourth proportional to 15,522.02, 21,420.88 and 8,448.92 is: 11,659.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,522.02 : 21,420.88 = 8,448.92 : x
  2. Step 2: Convert to fraction form
    15,522.02/21,420.88 = 8,448.92/x
  3. Step 3: Cross multiply
    15,522.02x = 21,420.88 × 8,448.92
  4. Step 4: Simplify right side
    15,522.02x = 180,983,301.45
  5. Step 5: Solve for x
    x = 180,983,301.45/15,522.02
  6. Step 6: Final answer
    x = 11,659.78

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Half scale
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Double scale
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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.