Home / 19,013.91-26,202.20-13,698.69

Finding the Fourth Proportional to 19,013.91, 26,202.20 and 13,698.69

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Solution

The fourth proportional to 19,013.91, 26,202.20 and 13,698.69 is: 18,877.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,013.91 : 26,202.20 = 13,698.69 : x
  2. Step 2: Convert to fraction form
    19,013.91/26,202.20 = 13,698.69/x
  3. Step 3: Cross multiply
    19,013.91x = 26,202.20 × 13,698.69
  4. Step 4: Simplify right side
    19,013.91x = 358,935,746.62
  5. Step 5: Solve for x
    x = 358,935,746.62/19,013.91
  6. Step 6: Final answer
    x = 18,877.53

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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.