Home / 12,488.12-18,734.02-4,698.76

Finding the Fourth Proportional to 12,488.12, 18,734.02 and 4,698.76

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Solution

The fourth proportional to 12,488.12, 18,734.02 and 4,698.76 is: 7,048.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,488.12 : 18,734.02 = 4,698.76 : x
  2. Step 2: Convert to fraction form
    12,488.12/18,734.02 = 4,698.76/x
  3. Step 3: Cross multiply
    12,488.12x = 18,734.02 × 4,698.76
  4. Step 4: Simplify right side
    12,488.12x = 88,026,663.82
  5. Step 5: Solve for x
    x = 88,026,663.82/12,488.12
  6. Step 6: Final answer
    x = 7,048.83

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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.