Home / 11,805.47-16,291.65-6,500.47

Finding the Fourth Proportional to 11,805.47, 16,291.65 and 6,500.47

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Solution

The fourth proportional to 11,805.47, 16,291.65 and 6,500.47 is: 8,970.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.47 : 16,291.65 = 6,500.47 : x
  2. Step 2: Convert to fraction form
    11,805.47/16,291.65 = 6,500.47/x
  3. Step 3: Cross multiply
    11,805.47x = 16,291.65 × 6,500.47
  4. Step 4: Simplify right side
    11,805.47x = 105,903,483.82
  5. Step 5: Solve for x
    x = 105,903,483.82/11,805.47
  6. Step 6: Final answer
    x = 8,970.71

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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.