Home / 19,218.24-28,790.04-12,624.40

Finding the Fourth Proportional to 19,218.24, 28,790.04 and 12,624.40

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Solution

The fourth proportional to 19,218.24, 28,790.04 and 12,624.40 is: 18,912.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,218.24 : 28,790.04 = 12,624.40 : x
  2. Step 2: Convert to fraction form
    19,218.24/28,790.04 = 12,624.40/x
  3. Step 3: Cross multiply
    19,218.24x = 28,790.04 × 12,624.40
  4. Step 4: Simplify right side
    19,218.24x = 363,456,980.98
  5. Step 5: Solve for x
    x = 363,456,980.98/19,218.24
  6. Step 6: Final answer
    x = 18,912.08

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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.