Home / 15,226.84-21,013.44-8,513.20

Finding the Fourth Proportional to 15,226.84, 21,013.44 and 8,513.20

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Solution

The fourth proportional to 15,226.84, 21,013.44 and 8,513.20 is: 11,748.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.84 : 21,013.44 = 8,513.20 : x
  2. Step 2: Convert to fraction form
    15,226.84/21,013.44 = 8,513.20/x
  3. Step 3: Cross multiply
    15,226.84x = 21,013.44 × 8,513.20
  4. Step 4: Simplify right side
    15,226.84x = 178,891,617.41
  5. Step 5: Solve for x
    x = 178,891,617.41/15,226.84
  6. Step 6: Final answer
    x = 11,748.44

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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.