Home / 19,115.40-26,385.30-11,160.84

Finding the Fourth Proportional to 19,115.40, 26,385.30 and 11,160.84

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Solution

The fourth proportional to 19,115.40, 26,385.30 and 11,160.84 is: 15,405.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,115.40 : 26,385.30 = 11,160.84 : x
  2. Step 2: Convert to fraction form
    19,115.40/26,385.30 = 11,160.84/x
  3. Step 3: Cross multiply
    19,115.40x = 26,385.30 × 11,160.84
  4. Step 4: Simplify right side
    19,115.40x = 294,482,111.65
  5. Step 5: Solve for x
    x = 294,482,111.65/19,115.40
  6. Step 6: Final answer
    x = 15,405.49

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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.