Home / 18,621.95-27,895.52-8,612.67

Finding the Fourth Proportional to 18,621.95, 27,895.52 and 8,612.67

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Solution

The fourth proportional to 18,621.95, 27,895.52 and 8,612.67 is: 12,901.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.95 : 27,895.52 = 8,612.67 : x
  2. Step 2: Convert to fraction form
    18,621.95/27,895.52 = 8,612.67/x
  3. Step 3: Cross multiply
    18,621.95x = 27,895.52 × 8,612.67
  4. Step 4: Simplify right side
    18,621.95x = 240,254,865.18
  5. Step 5: Solve for x
    x = 240,254,865.18/18,621.95
  6. Step 6: Final answer
    x = 12,901.71

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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.