Home / 10,431.03-14,387.79-6,454.10

Finding the Fourth Proportional to 10,431.03, 14,387.79 and 6,454.10

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Solution

The fourth proportional to 10,431.03, 14,387.79 and 6,454.10 is: 8,902.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,431.03 : 14,387.79 = 6,454.10 : x
  2. Step 2: Convert to fraction form
    10,431.03/14,387.79 = 6,454.10/x
  3. Step 3: Cross multiply
    10,431.03x = 14,387.79 × 6,454.10
  4. Step 4: Simplify right side
    10,431.03x = 92,860,163.50
  5. Step 5: Solve for x
    x = 92,860,163.50/10,431.03
  6. Step 6: Final answer
    x = 8,902.30

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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.