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Finding the Fourth Proportional to 10,653.62, 15,980.42 and 3,258.08

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Solution

The fourth proportional to 10,653.62, 15,980.42 and 3,258.08 is: 4,887.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.62 : 15,980.42 = 3,258.08 : x
  2. Step 2: Convert to fraction form
    10,653.62/15,980.42 = 3,258.08/x
  3. Step 3: Cross multiply
    10,653.62x = 15,980.42 × 3,258.08
  4. Step 4: Simplify right side
    10,653.62x = 52,065,415.04
  5. Step 5: Solve for x
    x = 52,065,415.04/10,653.62
  6. Step 6: Final answer
    x = 4,887.11

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.