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Finding the Fourth Proportional to 10,653.66, 15,981.12 and 3,258.63

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Solution

The fourth proportional to 10,653.66, 15,981.12 and 3,258.63 is: 4,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,653.66 : 15,981.12 = 3,258.63 : x
  2. Step 2: Convert to fraction form
    10,653.66/15,981.12 = 3,258.63/x
  3. Step 3: Cross multiply
    10,653.66x = 15,981.12 × 3,258.63
  4. Step 4: Simplify right side
    10,653.66x = 52,076,557.07
  5. Step 5: Solve for x
    x = 52,076,557.07/10,653.66
  6. Step 6: Final answer
    x = 4,888.14

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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.