Home / 10,421.39-14,388.47-6,173.82

Finding the Fourth Proportional to 10,421.39, 14,388.47 and 6,173.82

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Solution

The fourth proportional to 10,421.39, 14,388.47 and 6,173.82 is: 8,524.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,421.39 : 14,388.47 = 6,173.82 : x
  2. Step 2: Convert to fraction form
    10,421.39/14,388.47 = 6,173.82/x
  3. Step 3: Cross multiply
    10,421.39x = 14,388.47 × 6,173.82
  4. Step 4: Simplify right side
    10,421.39x = 88,831,839.29
  5. Step 5: Solve for x
    x = 88,831,839.29/10,421.39
  6. Step 6: Final answer
    x = 8,524.00

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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.