Home / 13,266.15-18,307.38-7,297.89

Finding the Fourth Proportional to 13,266.15, 18,307.38 and 7,297.89

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Solution

The fourth proportional to 13,266.15, 18,307.38 and 7,297.89 is: 10,071.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.15 : 18,307.38 = 7,297.89 : x
  2. Step 2: Convert to fraction form
    13,266.15/18,307.38 = 7,297.89/x
  3. Step 3: Cross multiply
    13,266.15x = 18,307.38 × 7,297.89
  4. Step 4: Simplify right side
    13,266.15x = 133,605,245.43
  5. Step 5: Solve for x
    x = 133,605,245.43/13,266.15
  6. Step 6: Final answer
    x = 10,071.14

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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.