Home / 19,187.70-28,761.75-10,404.06

Finding the Fourth Proportional to 19,187.70, 28,761.75 and 10,404.06

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Solution

The fourth proportional to 19,187.70, 28,761.75 and 10,404.06 is: 15,595.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,187.70 : 28,761.75 = 10,404.06 : x
  2. Step 2: Convert to fraction form
    19,187.70/28,761.75 = 10,404.06/x
  3. Step 3: Cross multiply
    19,187.70x = 28,761.75 × 10,404.06
  4. Step 4: Simplify right side
    19,187.70x = 299,238,972.71
  5. Step 5: Solve for x
    x = 299,238,972.71/19,187.70
  6. Step 6: Final answer
    x = 15,595.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.