Home / 13,604.04-20,386.90-10,818.35

Finding the Fourth Proportional to 13,604.04, 20,386.90 and 10,818.35

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Solution

The fourth proportional to 13,604.04, 20,386.90 and 10,818.35 is: 16,212.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,604.04 : 20,386.90 = 10,818.35 : x
  2. Step 2: Convert to fraction form
    13,604.04/20,386.90 = 10,818.35/x
  3. Step 3: Cross multiply
    13,604.04x = 20,386.90 × 10,818.35
  4. Step 4: Simplify right side
    13,604.04x = 220,552,619.62
  5. Step 5: Solve for x
    x = 220,552,619.62/13,604.04
  6. Step 6: Final answer
    x = 16,212.29

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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.