Home / 16,121.81-22,248.08-9,406.14

Finding the Fourth Proportional to 16,121.81, 22,248.08 and 9,406.14

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Solution

The fourth proportional to 16,121.81, 22,248.08 and 9,406.14 is: 12,980.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,121.81 : 22,248.08 = 9,406.14 : x
  2. Step 2: Convert to fraction form
    16,121.81/22,248.08 = 9,406.14/x
  3. Step 3: Cross multiply
    16,121.81x = 22,248.08 × 9,406.14
  4. Step 4: Simplify right side
    16,121.81x = 209,268,555.21
  5. Step 5: Solve for x
    x = 209,268,555.21/16,121.81
  6. Step 6: Final answer
    x = 12,980.46

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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.