Home / 12,487.01-18,739.73-5,913.18

Finding the Fourth Proportional to 12,487.01, 18,739.73 and 5,913.18

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Solution

The fourth proportional to 12,487.01, 18,739.73 and 5,913.18 is: 8,874.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,487.01 : 18,739.73 = 5,913.18 : x
  2. Step 2: Convert to fraction form
    12,487.01/18,739.73 = 5,913.18/x
  3. Step 3: Cross multiply
    12,487.01x = 18,739.73 × 5,913.18
  4. Step 4: Simplify right side
    12,487.01x = 110,811,367.08
  5. Step 5: Solve for x
    x = 110,811,367.08/12,487.01
  6. Step 6: Final answer
    x = 8,874.13

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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.