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Finding the Fourth Proportional to 16,247, 22,420.32 and 9,077.32

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Solution

The fourth proportional to 16,247, 22,420.32 and 9,077.32 is: 12,526.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,247 : 22,420.32 = 9,077.32 : x
  2. Step 2: Convert to fraction form
    16,247/22,420.32 = 9,077.32/x
  3. Step 3: Cross multiply
    16,247x = 22,420.32 × 9,077.32
  4. Step 4: Simplify right side
    16,247x = 203,516,419.14
  5. Step 5: Solve for x
    x = 203,516,419.14/16,247
  6. Step 6: Final answer
    x = 12,526.40

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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.