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Finding the Fourth Proportional to 15,234.84, 21,024.24 and 8,947.32

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Solution

The fourth proportional to 15,234.84, 21,024.24 and 8,947.32 is: 12,347.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,234.84 : 21,024.24 = 8,947.32 : x
  2. Step 2: Convert to fraction form
    15,234.84/21,024.24 = 8,947.32/x
  3. Step 3: Cross multiply
    15,234.84x = 21,024.24 × 8,947.32
  4. Step 4: Simplify right side
    15,234.84x = 188,110,603.04
  5. Step 5: Solve for x
    x = 188,110,603.04/15,234.84
  6. Step 6: Final answer
    x = 12,347.40

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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.