Home / 13,312.11-18,370.47-7,343.64

Finding the Fourth Proportional to 13,312.11, 18,370.47 and 7,343.64

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Solution

The fourth proportional to 13,312.11, 18,370.47 and 7,343.64 is: 10,134.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.11 : 18,370.47 = 7,343.64 : x
  2. Step 2: Convert to fraction form
    13,312.11/18,370.47 = 7,343.64/x
  3. Step 3: Cross multiply
    13,312.11x = 18,370.47 × 7,343.64
  4. Step 4: Simplify right side
    13,312.11x = 134,906,118.31
  5. Step 5: Solve for x
    x = 134,906,118.31/13,312.11
  6. Step 6: Final answer
    x = 10,134.09

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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.