Home / 15,206.02-20,994.18-13,609.91

Finding the Fourth Proportional to 15,206.02, 20,994.18 and 13,609.91

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Solution

The fourth proportional to 15,206.02, 20,994.18 and 13,609.91 is: 18,790.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,206.02 : 20,994.18 = 13,609.91 : x
  2. Step 2: Convert to fraction form
    15,206.02/20,994.18 = 13,609.91/x
  3. Step 3: Cross multiply
    15,206.02x = 20,994.18 × 13,609.91
  4. Step 4: Simplify right side
    15,206.02x = 285,728,900.32
  5. Step 5: Solve for x
    x = 285,728,900.32/15,206.02
  6. Step 6: Final answer
    x = 18,790.51

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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.