Home / 18,934.32-26,128.95-10,976.34

Finding the Fourth Proportional to 18,934.32, 26,128.95 and 10,976.34

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Solution

The fourth proportional to 18,934.32, 26,128.95 and 10,976.34 is: 15,147.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.32 : 26,128.95 = 10,976.34 : x
  2. Step 2: Convert to fraction form
    18,934.32/26,128.95 = 10,976.34/x
  3. Step 3: Cross multiply
    18,934.32x = 26,128.95 × 10,976.34
  4. Step 4: Simplify right side
    18,934.32x = 286,800,239.04
  5. Step 5: Solve for x
    x = 286,800,239.04/18,934.32
  6. Step 6: Final answer
    x = 15,147.11

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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.