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Finding the Fourth Proportional to 10,412.55, 15,623.08 and 5,486.54

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Solution

The fourth proportional to 10,412.55, 15,623.08 and 5,486.54 is: 8,232.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,412.55 : 15,623.08 = 5,486.54 : x
  2. Step 2: Convert to fraction form
    10,412.55/15,623.08 = 5,486.54/x
  3. Step 3: Cross multiply
    10,412.55x = 15,623.08 × 5,486.54
  4. Step 4: Simplify right side
    10,412.55x = 85,716,561.51
  5. Step 5: Solve for x
    x = 85,716,561.51/10,412.55
  6. Step 6: Final answer
    x = 8,232.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.