Home / 15,484.37-21,367.94-8,770.61

Finding the Fourth Proportional to 15,484.37, 21,367.94 and 8,770.61

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Solution

The fourth proportional to 15,484.37, 21,367.94 and 8,770.61 is: 12,103.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,484.37 : 21,367.94 = 8,770.61 : x
  2. Step 2: Convert to fraction form
    15,484.37/21,367.94 = 8,770.61/x
  3. Step 3: Cross multiply
    15,484.37x = 21,367.94 × 8,770.61
  4. Step 4: Simplify right side
    15,484.37x = 187,409,877.81
  5. Step 5: Solve for x
    x = 187,409,877.81/15,484.37
  6. Step 6: Final answer
    x = 12,103.17

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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.