Home / 12,929.92-19,392.08-4,166.56

Finding the Fourth Proportional to 12,929.92, 19,392.08 and 4,166.56

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Solution

The fourth proportional to 12,929.92, 19,392.08 and 4,166.56 is: 6,248.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,929.92 : 19,392.08 = 4,166.56 : x
  2. Step 2: Convert to fraction form
    12,929.92/19,392.08 = 4,166.56/x
  3. Step 3: Cross multiply
    12,929.92x = 19,392.08 × 4,166.56
  4. Step 4: Simplify right side
    12,929.92x = 80,798,264.84
  5. Step 5: Solve for x
    x = 80,798,264.84/12,929.92
  6. Step 6: Final answer
    x = 6,248.94

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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.