Home / 13,914.18-20,747.15-12,368.70

Finding the Fourth Proportional to 13,914.18, 20,747.15 and 12,368.70

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Solution

The fourth proportional to 13,914.18, 20,747.15 and 12,368.70 is: 18,442.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,914.18 : 20,747.15 = 12,368.70 : x
  2. Step 2: Convert to fraction form
    13,914.18/20,747.15 = 12,368.70/x
  3. Step 3: Cross multiply
    13,914.18x = 20,747.15 × 12,368.70
  4. Step 4: Simplify right side
    13,914.18x = 256,615,274.21
  5. Step 5: Solve for x
    x = 256,615,274.21/13,914.18
  6. Step 6: Final answer
    x = 18,442.72

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.