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Finding the Fourth Proportional to 15,303.84, 22,955.98 and 8,722.20

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Solution

The fourth proportional to 15,303.84, 22,955.98 and 8,722.20 is: 13,083.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,303.84 : 22,955.98 = 8,722.20 : x
  2. Step 2: Convert to fraction form
    15,303.84/22,955.98 = 8,722.20/x
  3. Step 3: Cross multiply
    15,303.84x = 22,955.98 × 8,722.20
  4. Step 4: Simplify right side
    15,303.84x = 200,226,648.76
  5. Step 5: Solve for x
    x = 200,226,648.76/15,303.84
  6. Step 6: Final answer
    x = 13,083.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.