Home / 13,775.92-19,010.68-7,488.29

Finding the Fourth Proportional to 13,775.92, 19,010.68 and 7,488.29

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Solution

The fourth proportional to 13,775.92, 19,010.68 and 7,488.29 is: 10,333.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,775.92 : 19,010.68 = 7,488.29 : x
  2. Step 2: Convert to fraction form
    13,775.92/19,010.68 = 7,488.29/x
  3. Step 3: Cross multiply
    13,775.92x = 19,010.68 × 7,488.29
  4. Step 4: Simplify right side
    13,775.92x = 142,357,513.74
  5. Step 5: Solve for x
    x = 142,357,513.74/13,775.92
  6. Step 6: Final answer
    x = 10,333.80

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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.