Home / 11,545.12-15,933.08-6,509.80

Finding the Fourth Proportional to 11,545.12, 15,933.08 and 6,509.80

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Solution

The fourth proportional to 11,545.12, 15,933.08 and 6,509.80 is: 8,983.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.12 : 15,933.08 = 6,509.80 : x
  2. Step 2: Convert to fraction form
    11,545.12/15,933.08 = 6,509.80/x
  3. Step 3: Cross multiply
    11,545.12x = 15,933.08 × 6,509.80
  4. Step 4: Simplify right side
    11,545.12x = 103,721,131.64
  5. Step 5: Solve for x
    x = 103,721,131.64/11,545.12
  6. Step 6: Final answer
    x = 8,983.98

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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.