Home / 10,235.79-15,344.55-3,994.35

Finding the Fourth Proportional to 10,235.79, 15,344.55 and 3,994.35

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Solution

The fourth proportional to 10,235.79, 15,344.55 and 3,994.35 is: 5,987.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,235.79 : 15,344.55 = 3,994.35 : x
  2. Step 2: Convert to fraction form
    10,235.79/15,344.55 = 3,994.35/x
  3. Step 3: Cross multiply
    10,235.79x = 15,344.55 × 3,994.35
  4. Step 4: Simplify right side
    10,235.79x = 61,291,416.58
  5. Step 5: Solve for x
    x = 61,291,416.58/10,235.79
  6. Step 6: Final answer
    x = 5,987.95

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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.