Home / 18,934.71-26,128.79-10,866.50

Finding the Fourth Proportional to 18,934.71, 26,128.79 and 10,866.50

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Solution

The fourth proportional to 18,934.71, 26,128.79 and 10,866.50 is: 14,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,934.71 : 26,128.79 = 10,866.50 : x
  2. Step 2: Convert to fraction form
    18,934.71/26,128.79 = 10,866.50/x
  3. Step 3: Cross multiply
    18,934.71x = 26,128.79 × 10,866.50
  4. Step 4: Simplify right side
    18,934.71x = 283,928,450.29
  5. Step 5: Solve for x
    x = 283,928,450.29/18,934.71
  6. Step 6: Final answer
    x = 14,995.13

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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.