Home / 15,557.16-21,470.85-11,589.57

Finding the Fourth Proportional to 15,557.16, 21,470.85 and 11,589.57

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Solution

The fourth proportional to 15,557.16, 21,470.85 and 11,589.57 is: 15,995.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,557.16 : 21,470.85 = 11,589.57 : x
  2. Step 2: Convert to fraction form
    15,557.16/21,470.85 = 11,589.57/x
  3. Step 3: Cross multiply
    15,557.16x = 21,470.85 × 11,589.57
  4. Step 4: Simplify right side
    15,557.16x = 248,837,919.03
  5. Step 5: Solve for x
    x = 248,837,919.03/15,557.16
  6. Step 6: Final answer
    x = 15,995.07

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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.