Home / 13,292.72-18,343.32-7,705.52

Finding the Fourth Proportional to 13,292.72, 18,343.32 and 7,705.52

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Solution

The fourth proportional to 13,292.72, 18,343.32 and 7,705.52 is: 10,633.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,292.72 : 18,343.32 = 7,705.52 : x
  2. Step 2: Convert to fraction form
    13,292.72/18,343.32 = 7,705.52/x
  3. Step 3: Cross multiply
    13,292.72x = 18,343.32 × 7,705.52
  4. Step 4: Simplify right side
    13,292.72x = 141,344,819.13
  5. Step 5: Solve for x
    x = 141,344,819.13/13,292.72
  6. Step 6: Final answer
    x = 10,633.25

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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.