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Finding the Fourth Proportional to 11,545.64, 15,932.93 and 6,509.64

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Solution

The fourth proportional to 11,545.64, 15,932.93 and 6,509.64 is: 8,983.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,545.64 : 15,932.93 = 6,509.64 : x
  2. Step 2: Convert to fraction form
    11,545.64/15,932.93 = 6,509.64/x
  3. Step 3: Cross multiply
    11,545.64x = 15,932.93 × 6,509.64
  4. Step 4: Simplify right side
    11,545.64x = 103,717,638.45
  5. Step 5: Solve for x
    x = 103,717,638.45/11,545.64
  6. Step 6: Final answer
    x = 8,983.27

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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.