Home / 13,307.68-18,365.30-9,327.34

Finding the Fourth Proportional to 13,307.68, 18,365.30 and 9,327.34

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Solution

The fourth proportional to 13,307.68, 18,365.30 and 9,327.34 is: 12,872.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.68 : 18,365.30 = 9,327.34 : x
  2. Step 2: Convert to fraction form
    13,307.68/18,365.30 = 9,327.34/x
  3. Step 3: Cross multiply
    13,307.68x = 18,365.30 × 9,327.34
  4. Step 4: Simplify right side
    13,307.68x = 171,299,397.30
  5. Step 5: Solve for x
    x = 171,299,397.30/13,307.68
  6. Step 6: Final answer
    x = 12,872.22

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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.