Home / 15,178.64-22,768.16-5,318.19

Finding the Fourth Proportional to 15,178.64, 22,768.16 and 5,318.19

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Solution

The fourth proportional to 15,178.64, 22,768.16 and 5,318.19 is: 7,977.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,178.64 : 22,768.16 = 5,318.19 : x
  2. Step 2: Convert to fraction form
    15,178.64/22,768.16 = 5,318.19/x
  3. Step 3: Cross multiply
    15,178.64x = 22,768.16 × 5,318.19
  4. Step 4: Simplify right side
    15,178.64x = 121,085,374.24
  5. Step 5: Solve for x
    x = 121,085,374.24/15,178.64
  6. Step 6: Final answer
    x = 7,977.36

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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.