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Finding the Fourth Proportional to 10,888.83, 15,019.53 and 6,408.82

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Solution

The fourth proportional to 10,888.83, 15,019.53 and 6,408.82 is: 8,840.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,888.83 : 15,019.53 = 6,408.82 : x
  2. Step 2: Convert to fraction form
    10,888.83/15,019.53 = 6,408.82/x
  3. Step 3: Cross multiply
    10,888.83x = 15,019.53 × 6,408.82
  4. Step 4: Simplify right side
    10,888.83x = 96,257,459.00
  5. Step 5: Solve for x
    x = 96,257,459.00/10,888.83
  6. Step 6: Final answer
    x = 8,840.02

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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.