Home / 19,889.64-27,447.80-10,937.72

Finding the Fourth Proportional to 19,889.64, 27,447.80 and 10,937.72

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Solution

The fourth proportional to 19,889.64, 27,447.80 and 10,937.72 is: 15,094.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,889.64 : 27,447.80 = 10,937.72 : x
  2. Step 2: Convert to fraction form
    19,889.64/27,447.80 = 10,937.72/x
  3. Step 3: Cross multiply
    19,889.64x = 27,447.80 × 10,937.72
  4. Step 4: Simplify right side
    19,889.64x = 300,216,351.02
  5. Step 5: Solve for x
    x = 300,216,351.02/19,889.64
  6. Step 6: Final answer
    x = 15,094.11

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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.