Home / 15,769.95-21,767.00-11,055.39

Finding the Fourth Proportional to 15,769.95, 21,767.00 and 11,055.39

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Solution

The fourth proportional to 15,769.95, 21,767.00 and 11,055.39 is: 15,259.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,769.95 : 21,767.00 = 11,055.39 : x
  2. Step 2: Convert to fraction form
    15,769.95/21,767.00 = 11,055.39/x
  3. Step 3: Cross multiply
    15,769.95x = 21,767.00 × 11,055.39
  4. Step 4: Simplify right side
    15,769.95x = 240,642,618.85
  5. Step 5: Solve for x
    x = 240,642,618.85/15,769.95
  6. Step 6: Final answer
    x = 15,259.57

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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.