Home / 15,499.36-21,375.12-10,192.16

Finding the Fourth Proportional to 15,499.36, 21,375.12 and 10,192.16

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Solution

The fourth proportional to 15,499.36, 21,375.12 and 10,192.16 is: 14,055.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,499.36 : 21,375.12 = 10,192.16 : x
  2. Step 2: Convert to fraction form
    15,499.36/21,375.12 = 10,192.16/x
  3. Step 3: Cross multiply
    15,499.36x = 21,375.12 × 10,192.16
  4. Step 4: Simplify right side
    15,499.36x = 217,858,643.06
  5. Step 5: Solve for x
    x = 217,858,643.06/15,499.36
  6. Step 6: Final answer
    x = 14,055.98

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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.