Home / 15,667.08-21,621.24-9,378.24

Finding the Fourth Proportional to 15,667.08, 21,621.24 and 9,378.24

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Solution

The fourth proportional to 15,667.08, 21,621.24 and 9,378.24 is: 12,942.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,667.08 : 21,621.24 = 9,378.24 : x
  2. Step 2: Convert to fraction form
    15,667.08/21,621.24 = 9,378.24/x
  3. Step 3: Cross multiply
    15,667.08x = 21,621.24 × 9,378.24
  4. Step 4: Simplify right side
    15,667.08x = 202,769,177.82
  5. Step 5: Solve for x
    x = 202,769,177.82/15,667.08
  6. Step 6: Final answer
    x = 12,942.37

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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.