Home / 18,887.12-28,340.58-8,364.41

Finding the Fourth Proportional to 18,887.12, 28,340.58 and 8,364.41

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Solution

The fourth proportional to 18,887.12, 28,340.58 and 8,364.41 is: 12,551.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,887.12 : 28,340.58 = 8,364.41 : x
  2. Step 2: Convert to fraction form
    18,887.12/28,340.58 = 8,364.41/x
  3. Step 3: Cross multiply
    18,887.12x = 28,340.58 × 8,364.41
  4. Step 4: Simplify right side
    18,887.12x = 237,052,386.11
  5. Step 5: Solve for x
    x = 237,052,386.11/18,887.12
  6. Step 6: Final answer
    x = 12,551.00

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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.