Home / 18,929.64-26,127.40-10,976.24

Finding the Fourth Proportional to 18,929.64, 26,127.40 and 10,976.24

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Solution

The fourth proportional to 18,929.64, 26,127.40 and 10,976.24 is: 15,149.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,929.64 : 26,127.40 = 10,976.24 : x
  2. Step 2: Convert to fraction form
    18,929.64/26,127.40 = 10,976.24/x
  3. Step 3: Cross multiply
    18,929.64x = 26,127.40 × 10,976.24
  4. Step 4: Simplify right side
    18,929.64x = 286,780,612.98
  5. Step 5: Solve for x
    x = 286,780,612.98/18,929.64
  6. Step 6: Final answer
    x = 15,149.82

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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.