Home / 15,226.08-21,016.44-9,640.32

Finding the Fourth Proportional to 15,226.08, 21,016.44 and 9,640.32

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Solution

The fourth proportional to 15,226.08, 21,016.44 and 9,640.32 is: 13,306.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,226.08 : 21,016.44 = 9,640.32 : x
  2. Step 2: Convert to fraction form
    15,226.08/21,016.44 = 9,640.32/x
  3. Step 3: Cross multiply
    15,226.08x = 21,016.44 × 9,640.32
  4. Step 4: Simplify right side
    15,226.08x = 202,605,206.86
  5. Step 5: Solve for x
    x = 202,605,206.86/15,226.08
  6. Step 6: Final answer
    x = 13,306.46

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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.