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Finding the Fourth Proportional to 10,953.60, 15,115.84 and 5,985.60

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Solution

The fourth proportional to 10,953.60, 15,115.84 and 5,985.60 is: 8,260.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,953.60 : 15,115.84 = 5,985.60 : x
  2. Step 2: Convert to fraction form
    10,953.60/15,115.84 = 5,985.60/x
  3. Step 3: Cross multiply
    10,953.60x = 15,115.84 × 5,985.60
  4. Step 4: Simplify right side
    10,953.60x = 90,477,371.90
  5. Step 5: Solve for x
    x = 90,477,371.90/10,953.60
  6. Step 6: Final answer
    x = 8,260.06

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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.