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Finding the Fourth Proportional to 8,717.71, 12,030.51 and 4,738.82

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Solution

The fourth proportional to 8,717.71, 12,030.51 and 4,738.82 is: 6,539.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.71 : 12,030.51 = 4,738.82 : x
  2. Step 2: Convert to fraction form
    8,717.71/12,030.51 = 4,738.82/x
  3. Step 3: Cross multiply
    8,717.71x = 12,030.51 × 4,738.82
  4. Step 4: Simplify right side
    8,717.71x = 57,010,421.40
  5. Step 5: Solve for x
    x = 57,010,421.40/8,717.71
  6. Step 6: Final answer
    x = 6,539.61

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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.