Home / 13,312.35-18,370.18-7,344.06

Finding the Fourth Proportional to 13,312.35, 18,370.18 and 7,344.06

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Solution

The fourth proportional to 13,312.35, 18,370.18 and 7,344.06 is: 10,134.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,312.35 : 18,370.18 = 7,344.06 : x
  2. Step 2: Convert to fraction form
    13,312.35/18,370.18 = 7,344.06/x
  3. Step 3: Cross multiply
    13,312.35x = 18,370.18 × 7,344.06
  4. Step 4: Simplify right side
    13,312.35x = 134,911,704.13
  5. Step 5: Solve for x
    x = 134,911,704.13/13,312.35
  6. Step 6: Final answer
    x = 10,134.33

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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.