Home / 13,506.28-18,656.63-12,248.62

Finding the Fourth Proportional to 13,506.28, 18,656.63 and 12,248.62

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Solution

The fourth proportional to 13,506.28, 18,656.63 and 12,248.62 is: 16,919.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.28 : 18,656.63 = 12,248.62 : x
  2. Step 2: Convert to fraction form
    13,506.28/18,656.63 = 12,248.62/x
  3. Step 3: Cross multiply
    13,506.28x = 18,656.63 × 12,248.62
  4. Step 4: Simplify right side
    13,506.28x = 228,517,909.40
  5. Step 5: Solve for x
    x = 228,517,909.40/13,506.28
  6. Step 6: Final answer
    x = 16,919.39

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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.