Home / 13,331.07-18,396.05-7,362.45

Finding the Fourth Proportional to 13,331.07, 18,396.05 and 7,362.45

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Solution

The fourth proportional to 13,331.07, 18,396.05 and 7,362.45 is: 10,159.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,331.07 : 18,396.05 = 7,362.45 : x
  2. Step 2: Convert to fraction form
    13,331.07/18,396.05 = 7,362.45/x
  3. Step 3: Cross multiply
    13,331.07x = 18,396.05 × 7,362.45
  4. Step 4: Simplify right side
    13,331.07x = 135,439,961.51
  5. Step 5: Solve for x
    x = 135,439,961.51/13,331.07
  6. Step 6: Final answer
    x = 10,159.72

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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.