Home / 13,506.45-18,657.06-12,248.91

Finding the Fourth Proportional to 13,506.45, 18,657.06 and 12,248.91

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Solution

The fourth proportional to 13,506.45, 18,657.06 and 12,248.91 is: 16,919.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,506.45 : 18,657.06 = 12,248.91 : x
  2. Step 2: Convert to fraction form
    13,506.45/18,657.06 = 12,248.91/x
  3. Step 3: Cross multiply
    13,506.45x = 18,657.06 × 12,248.91
  4. Step 4: Simplify right side
    13,506.45x = 228,528,648.80
  5. Step 5: Solve for x
    x = 228,528,648.80/13,506.45
  6. Step 6: Final answer
    x = 16,919.96

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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.