Home / 15,772.32-21,764.91-9,803.84

Finding the Fourth Proportional to 15,772.32, 21,764.91 and 9,803.84

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Solution

The fourth proportional to 15,772.32, 21,764.91 and 9,803.84 is: 13,528.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,772.32 : 21,764.91 = 9,803.84 : x
  2. Step 2: Convert to fraction form
    15,772.32/21,764.91 = 9,803.84/x
  3. Step 3: Cross multiply
    15,772.32x = 21,764.91 × 9,803.84
  4. Step 4: Simplify right side
    15,772.32x = 213,379,586.43
  5. Step 5: Solve for x
    x = 213,379,586.43/15,772.32
  6. Step 6: Final answer
    x = 13,528.74

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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.