Home / 10,664.49-15,983.77-7,545.40

Finding the Fourth Proportional to 10,664.49, 15,983.77 and 7,545.40

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Solution

The fourth proportional to 10,664.49, 15,983.77 and 7,545.40 is: 11,308.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,664.49 : 15,983.77 = 7,545.40 : x
  2. Step 2: Convert to fraction form
    10,664.49/15,983.77 = 7,545.40/x
  3. Step 3: Cross multiply
    10,664.49x = 15,983.77 × 7,545.40
  4. Step 4: Simplify right side
    10,664.49x = 120,603,859.70
  5. Step 5: Solve for x
    x = 120,603,859.70/10,664.49
  6. Step 6: Final answer
    x = 11,308.92

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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.