Home / 13,322.75-18,384.63-7,354.05

Finding the Fourth Proportional to 13,322.75, 18,384.63 and 7,354.05

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Solution

The fourth proportional to 13,322.75, 18,384.63 and 7,354.05 is: 10,148.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,322.75 : 18,384.63 = 7,354.05 : x
  2. Step 2: Convert to fraction form
    13,322.75/18,384.63 = 7,354.05/x
  3. Step 3: Cross multiply
    13,322.75x = 18,384.63 × 7,354.05
  4. Step 4: Simplify right side
    13,322.75x = 135,201,488.25
  5. Step 5: Solve for x
    x = 135,201,488.25/13,322.75
  6. Step 6: Final answer
    x = 10,148.17

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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.