Home / 13,312.12-18,370.46-7,344.34

Finding the Fourth Proportional to 13,312.12, 18,370.46 and 7,344.34

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Solution

The fourth proportional to 13,312.12, 18,370.46 and 7,344.34 is: 10,135.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.12 : 18,370.46 = 7,344.34 : x
  2. Step 2: Convert to fraction form
    13,312.12/18,370.46 = 7,344.34/x
  3. Step 3: Cross multiply
    13,312.12x = 18,370.46 × 7,344.34
  4. Step 4: Simplify right side
    13,312.12x = 134,918,904.20
  5. Step 5: Solve for x
    x = 134,918,904.20/13,312.12
  6. Step 6: Final answer
    x = 10,135.04

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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.