Home / 8,717.31-12,029.45-4,738.28

Finding the Fourth Proportional to 8,717.31, 12,029.45 and 4,738.28

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Solution

The fourth proportional to 8,717.31, 12,029.45 and 4,738.28 is: 6,538.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,717.31 : 12,029.45 = 4,738.28 : x
  2. Step 2: Convert to fraction form
    8,717.31/12,029.45 = 4,738.28/x
  3. Step 3: Cross multiply
    8,717.31x = 12,029.45 × 4,738.28
  4. Step 4: Simplify right side
    8,717.31x = 56,998,818.51
  5. Step 5: Solve for x
    x = 56,998,818.51/8,717.31
  6. Step 6: Final answer
    x = 6,538.58

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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.