Home / 19,386.24-26,763.12-13,107.12

Finding the Fourth Proportional to 19,386.24, 26,763.12 and 13,107.12

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Solution

The fourth proportional to 19,386.24, 26,763.12 and 13,107.12 is: 18,094.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,386.24 : 26,763.12 = 13,107.12 : x
  2. Step 2: Convert to fraction form
    19,386.24/26,763.12 = 13,107.12/x
  3. Step 3: Cross multiply
    19,386.24x = 26,763.12 × 13,107.12
  4. Step 4: Simplify right side
    19,386.24x = 350,787,425.41
  5. Step 5: Solve for x
    x = 350,787,425.41/19,386.24
  6. Step 6: Final answer
    x = 18,094.66

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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.