Home / 12,872.65-19,308.77-9,384.79

Finding the Fourth Proportional to 12,872.65, 19,308.77 and 9,384.79

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Solution

The fourth proportional to 12,872.65, 19,308.77 and 9,384.79 is: 14,077.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,872.65 : 19,308.77 = 9,384.79 : x
  2. Step 2: Convert to fraction form
    12,872.65/19,308.77 = 9,384.79/x
  3. Step 3: Cross multiply
    12,872.65x = 19,308.77 × 9,384.79
  4. Step 4: Simplify right side
    12,872.65x = 181,208,751.61
  5. Step 5: Solve for x
    x = 181,208,751.61/12,872.65
  6. Step 6: Final answer
    x = 14,077.04

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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.