Home / 19,221.78-26,526.06-10,838.28

Finding the Fourth Proportional to 19,221.78, 26,526.06 and 10,838.28

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Solution

The fourth proportional to 19,221.78, 26,526.06 and 10,838.28 is: 14,956.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,221.78 : 26,526.06 = 10,838.28 : x
  2. Step 2: Convert to fraction form
    19,221.78/26,526.06 = 10,838.28/x
  3. Step 3: Cross multiply
    19,221.78x = 26,526.06 × 10,838.28
  4. Step 4: Simplify right side
    19,221.78x = 287,496,865.58
  5. Step 5: Solve for x
    x = 287,496,865.58/19,221.78
  6. Step 6: Final answer
    x = 14,956.83

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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.