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Finding the Fourth Proportional to 10,653.94, 15,980.90 and 3,258.39

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Solution

The fourth proportional to 10,653.94, 15,980.90 and 3,258.39 is: 4,887.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.94 : 15,980.90 = 3,258.39 : x
  2. Step 2: Convert to fraction form
    10,653.94/15,980.90 = 3,258.39/x
  3. Step 3: Cross multiply
    10,653.94x = 15,980.90 × 3,258.39
  4. Step 4: Simplify right side
    10,653.94x = 52,071,988.46
  5. Step 5: Solve for x
    x = 52,071,988.46/10,653.94
  6. Step 6: Final answer
    x = 4,887.58

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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.