Home / 18,621.17-25,697.68-10,665.95

Finding the Fourth Proportional to 18,621.17, 25,697.68 and 10,665.95

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Solution

The fourth proportional to 18,621.17, 25,697.68 and 10,665.95 is: 14,719.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,621.17 : 25,697.68 = 10,665.95 : x
  2. Step 2: Convert to fraction form
    18,621.17/25,697.68 = 10,665.95/x
  3. Step 3: Cross multiply
    18,621.17x = 25,697.68 × 10,665.95
  4. Step 4: Simplify right side
    18,621.17x = 274,090,207.58
  5. Step 5: Solve for x
    x = 274,090,207.58/18,621.17
  6. Step 6: Final answer
    x = 14,719.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.