Home / 13,513.49-18,648.44-7,545.26

Finding the Fourth Proportional to 13,513.49, 18,648.44 and 7,545.26

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Solution

The fourth proportional to 13,513.49, 18,648.44 and 7,545.26 is: 10,412.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,513.49 : 18,648.44 = 7,545.26 : x
  2. Step 2: Convert to fraction form
    13,513.49/18,648.44 = 7,545.26/x
  3. Step 3: Cross multiply
    13,513.49x = 18,648.44 × 7,545.26
  4. Step 4: Simplify right side
    13,513.49x = 140,707,197.43
  5. Step 5: Solve for x
    x = 140,707,197.43/13,513.49
  6. Step 6: Final answer
    x = 10,412.35

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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.