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Finding the Fourth Proportional to 15,364.17, 21,202.02 and 9,396.09

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Solution

The fourth proportional to 15,364.17, 21,202.02 and 9,396.09 is: 12,966.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,364.17 : 21,202.02 = 9,396.09 : x
  2. Step 2: Convert to fraction form
    15,364.17/21,202.02 = 9,396.09/x
  3. Step 3: Cross multiply
    15,364.17x = 21,202.02 × 9,396.09
  4. Step 4: Simplify right side
    15,364.17x = 199,216,088.10
  5. Step 5: Solve for x
    x = 199,216,088.10/15,364.17
  6. Step 6: Final answer
    x = 12,966.28

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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.