Home / 19,309.38-26,643.85-10,811.87

Finding the Fourth Proportional to 19,309.38, 26,643.85 and 10,811.87

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Solution

The fourth proportional to 19,309.38, 26,643.85 and 10,811.87 is: 14,918.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,309.38 : 26,643.85 = 10,811.87 : x
  2. Step 2: Convert to fraction form
    19,309.38/26,643.85 = 10,811.87/x
  3. Step 3: Cross multiply
    19,309.38x = 26,643.85 × 10,811.87
  4. Step 4: Simplify right side
    19,309.38x = 288,069,842.50
  5. Step 5: Solve for x
    x = 288,069,842.50/19,309.38
  6. Step 6: Final answer
    x = 14,918.65

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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.