Home / 15,019.60-22,529.40-12,686.80

Finding the Fourth Proportional to 15,019.60, 22,529.40 and 12,686.80

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Solution

The fourth proportional to 15,019.60, 22,529.40 and 12,686.80 is: 19,030.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,019.60 : 22,529.40 = 12,686.80 : x
  2. Step 2: Convert to fraction form
    15,019.60/22,529.40 = 12,686.80/x
  3. Step 3: Cross multiply
    15,019.60x = 22,529.40 × 12,686.80
  4. Step 4: Simplify right side
    15,019.60x = 285,825,991.92
  5. Step 5: Solve for x
    x = 285,825,991.92/15,019.60
  6. Step 6: Final answer
    x = 19,030.20

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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.