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Finding the Fourth Proportional to 15,349.62, 21,182.36 and 8,725.62

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Solution

The fourth proportional to 15,349.62, 21,182.36 and 8,725.62 is: 12,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,349.62 : 21,182.36 = 8,725.62 : x
  2. Step 2: Convert to fraction form
    15,349.62/21,182.36 = 8,725.62/x
  3. Step 3: Cross multiply
    15,349.62x = 21,182.36 × 8,725.62
  4. Step 4: Simplify right side
    15,349.62x = 184,829,224.06
  5. Step 5: Solve for x
    x = 184,829,224.06/15,349.62
  6. Step 6: Final answer
    x = 12,041.29

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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.