Home / 11,390.35-15,717.91-6,545.23

Finding the Fourth Proportional to 11,390.35, 15,717.91 and 6,545.23

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Solution

The fourth proportional to 11,390.35, 15,717.91 and 6,545.23 is: 9,031.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,390.35 : 15,717.91 = 6,545.23 : x
  2. Step 2: Convert to fraction form
    11,390.35/15,717.91 = 6,545.23/x
  3. Step 3: Cross multiply
    11,390.35x = 15,717.91 × 6,545.23
  4. Step 4: Simplify right side
    11,390.35x = 102,877,336.07
  5. Step 5: Solve for x
    x = 102,877,336.07/11,390.35
  6. Step 6: Final answer
    x = 9,031.97

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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.