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Finding the Fourth Proportional to 8,717.54, 12,030.06 and 4,738.75

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Solution

The fourth proportional to 8,717.54, 12,030.06 and 4,738.75 is: 6,539.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.54 : 12,030.06 = 4,738.75 : x
  2. Step 2: Convert to fraction form
    8,717.54/12,030.06 = 4,738.75/x
  3. Step 3: Cross multiply
    8,717.54x = 12,030.06 × 4,738.75
  4. Step 4: Simplify right side
    8,717.54x = 57,007,446.83
  5. Step 5: Solve for x
    x = 57,007,446.83/8,717.54
  6. Step 6: Final answer
    x = 6,539.40

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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.