Home / 15,870.13-23,805.96-13,091.66

Finding the Fourth Proportional to 15,870.13, 23,805.96 and 13,091.66

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Solution

The fourth proportional to 15,870.13, 23,805.96 and 13,091.66 is: 19,638.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,870.13 : 23,805.96 = 13,091.66 : x
  2. Step 2: Convert to fraction form
    15,870.13/23,805.96 = 13,091.66/x
  3. Step 3: Cross multiply
    15,870.13x = 23,805.96 × 13,091.66
  4. Step 4: Simplify right side
    15,870.13x = 311,659,529.08
  5. Step 5: Solve for x
    x = 311,659,529.08/15,870.13
  6. Step 6: Final answer
    x = 19,638.12

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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.