Home / 12,030.15-18,047.61-3,709.80

Finding the Fourth Proportional to 12,030.15, 18,047.61 and 3,709.80

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Solution

The fourth proportional to 12,030.15, 18,047.61 and 3,709.80 is: 5,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,030.15 : 18,047.61 = 3,709.80 : x
  2. Step 2: Convert to fraction form
    12,030.15/18,047.61 = 3,709.80/x
  3. Step 3: Cross multiply
    12,030.15x = 18,047.61 × 3,709.80
  4. Step 4: Simplify right side
    12,030.15x = 66,953,023.58
  5. Step 5: Solve for x
    x = 66,953,023.58/12,030.15
  6. Step 6: Final answer
    x = 5,565.44

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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.