Home / 15,822.72-21,836.48-8,748.99

Finding the Fourth Proportional to 15,822.72, 21,836.48 and 8,748.99

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Solution

The fourth proportional to 15,822.72, 21,836.48 and 8,748.99 is: 12,074.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,822.72 : 21,836.48 = 8,748.99 : x
  2. Step 2: Convert to fraction form
    15,822.72/21,836.48 = 8,748.99/x
  3. Step 3: Cross multiply
    15,822.72x = 21,836.48 × 8,748.99
  4. Step 4: Simplify right side
    15,822.72x = 191,047,101.41
  5. Step 5: Solve for x
    x = 191,047,101.41/15,822.72
  6. Step 6: Final answer
    x = 12,074.23

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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.