Home / 10,388.88-14,329.08-6,408.54

Finding the Fourth Proportional to 10,388.88, 14,329.08 and 6,408.54

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Solution

The fourth proportional to 10,388.88, 14,329.08 and 6,408.54 is: 8,839.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,388.88 : 14,329.08 = 6,408.54 : x
  2. Step 2: Convert to fraction form
    10,388.88/14,329.08 = 6,408.54/x
  3. Step 3: Cross multiply
    10,388.88x = 14,329.08 × 6,408.54
  4. Step 4: Simplify right side
    10,388.88x = 91,828,482.34
  5. Step 5: Solve for x
    x = 91,828,482.34/10,388.88
  6. Step 6: Final answer
    x = 8,839.11

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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.