Home / 18,970.64-26,172.24-11,011.52

Finding the Fourth Proportional to 18,970.64, 26,172.24 and 11,011.52

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Solution

The fourth proportional to 18,970.64, 26,172.24 and 11,011.52 is: 15,191.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,970.64 : 26,172.24 = 11,011.52 : x
  2. Step 2: Convert to fraction form
    18,970.64/26,172.24 = 11,011.52/x
  3. Step 3: Cross multiply
    18,970.64x = 26,172.24 × 11,011.52
  4. Step 4: Simplify right side
    18,970.64x = 288,196,144.20
  5. Step 5: Solve for x
    x = 288,196,144.20/18,970.64
  6. Step 6: Final answer
    x = 15,191.69

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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.