Home / 19,303.78-28,901.07-12,266.35

Finding the Fourth Proportional to 19,303.78, 28,901.07 and 12,266.35

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Solution

The fourth proportional to 19,303.78, 28,901.07 and 12,266.35 is: 18,364.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,303.78 : 28,901.07 = 12,266.35 : x
  2. Step 2: Convert to fraction form
    19,303.78/28,901.07 = 12,266.35/x
  3. Step 3: Cross multiply
    19,303.78x = 28,901.07 × 12,266.35
  4. Step 4: Simplify right side
    19,303.78x = 354,510,619.20
  5. Step 5: Solve for x
    x = 354,510,619.20/19,303.78
  6. Step 6: Final answer
    x = 18,364.83

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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.