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Finding the Fourth Proportional to 15,366.84, 21,206.01 and 8,652.48

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Solution

The fourth proportional to 15,366.84, 21,206.01 and 8,652.48 is: 11,940.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,366.84 : 21,206.01 = 8,652.48 : x
  2. Step 2: Convert to fraction form
    15,366.84/21,206.01 = 8,652.48/x
  3. Step 3: Cross multiply
    15,366.84x = 21,206.01 × 8,652.48
  4. Step 4: Simplify right side
    15,366.84x = 183,484,577.40
  5. Step 5: Solve for x
    x = 183,484,577.40/15,366.84
  6. Step 6: Final answer
    x = 11,940.29

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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.