Home / 13,945.48-19,243.68-7,658.20

Finding the Fourth Proportional to 13,945.48, 19,243.68 and 7,658.20

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Solution

The fourth proportional to 13,945.48, 19,243.68 and 7,658.20 is: 10,567.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,945.48 : 19,243.68 = 7,658.20 : x
  2. Step 2: Convert to fraction form
    13,945.48/19,243.68 = 7,658.20/x
  3. Step 3: Cross multiply
    13,945.48x = 19,243.68 × 7,658.20
  4. Step 4: Simplify right side
    13,945.48x = 147,371,950.18
  5. Step 5: Solve for x
    x = 147,371,950.18/13,945.48
  6. Step 6: Final answer
    x = 10,567.72

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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.