Home / 15,601.16-21,539.66-13,919.65

Finding the Fourth Proportional to 15,601.16, 21,539.66 and 13,919.65

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Solution

The fourth proportional to 15,601.16, 21,539.66 and 13,919.65 is: 19,218.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,601.16 : 21,539.66 = 13,919.65 : x
  2. Step 2: Convert to fraction form
    15,601.16/21,539.66 = 13,919.65/x
  3. Step 3: Cross multiply
    15,601.16x = 21,539.66 × 13,919.65
  4. Step 4: Simplify right side
    15,601.16x = 299,824,528.32
  5. Step 5: Solve for x
    x = 299,824,528.32/15,601.16
  6. Step 6: Final answer
    x = 19,218.09

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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.