Home / 18,918.74-26,107.58-10,960.79

Finding the Fourth Proportional to 18,918.74, 26,107.58 and 10,960.79

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Solution

The fourth proportional to 18,918.74, 26,107.58 and 10,960.79 is: 15,125.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,918.74 : 26,107.58 = 10,960.79 : x
  2. Step 2: Convert to fraction form
    18,918.74/26,107.58 = 10,960.79/x
  3. Step 3: Cross multiply
    18,918.74x = 26,107.58 × 10,960.79
  4. Step 4: Simplify right side
    18,918.74x = 286,159,598.65
  5. Step 5: Solve for x
    x = 286,159,598.65/18,918.74
  6. Step 6: Final answer
    x = 15,125.72

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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.