Home / 18,663.99-25,756.31-10,280.49

Finding the Fourth Proportional to 18,663.99, 25,756.31 and 10,280.49

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Solution

The fourth proportional to 18,663.99, 25,756.31 and 10,280.49 is: 14,187.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,663.99 : 25,756.31 = 10,280.49 : x
  2. Step 2: Convert to fraction form
    18,663.99/25,756.31 = 10,280.49/x
  3. Step 3: Cross multiply
    18,663.99x = 25,756.31 × 10,280.49
  4. Step 4: Simplify right side
    18,663.99x = 264,787,435.99
  5. Step 5: Solve for x
    x = 264,787,435.99/18,663.99
  6. Step 6: Final answer
    x = 14,187.08

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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.