Home / 12,615.11-17,395.66-9,423.41

Finding the Fourth Proportional to 12,615.11, 17,395.66 and 9,423.41

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Solution

The fourth proportional to 12,615.11, 17,395.66 and 9,423.41 is: 12,994.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,615.11 : 17,395.66 = 9,423.41 : x
  2. Step 2: Convert to fraction form
    12,615.11/17,395.66 = 9,423.41/x
  3. Step 3: Cross multiply
    12,615.11x = 17,395.66 × 9,423.41
  4. Step 4: Simplify right side
    12,615.11x = 163,926,325.86
  5. Step 5: Solve for x
    x = 163,926,325.86/12,615.11
  6. Step 6: Final answer
    x = 12,994.44

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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.