Home / 12,398.36-18,579.32-9,772.14

Finding the Fourth Proportional to 12,398.36, 18,579.32 and 9,772.14

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Solution

The fourth proportional to 12,398.36, 18,579.32 and 9,772.14 is: 14,643.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,398.36 : 18,579.32 = 9,772.14 : x
  2. Step 2: Convert to fraction form
    12,398.36/18,579.32 = 9,772.14/x
  3. Step 3: Cross multiply
    12,398.36x = 18,579.32 × 9,772.14
  4. Step 4: Simplify right side
    12,398.36x = 181,559,667.28
  5. Step 5: Solve for x
    x = 181,559,667.28/12,398.36
  6. Step 6: Final answer
    x = 14,643.85

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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.