Home / 11,805.50-16,291.95-6,500.51

Finding the Fourth Proportional to 11,805.50, 16,291.95 and 6,500.51

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Solution

The fourth proportional to 11,805.50, 16,291.95 and 6,500.51 is: 8,970.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,805.50 : 16,291.95 = 6,500.51 : x
  2. Step 2: Convert to fraction form
    11,805.50/16,291.95 = 6,500.51/x
  3. Step 3: Cross multiply
    11,805.50x = 16,291.95 × 6,500.51
  4. Step 4: Simplify right side
    11,805.50x = 105,905,975.72
  5. Step 5: Solve for x
    x = 105,905,975.72/11,805.50
  6. Step 6: Final answer
    x = 8,970.90

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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.