Home / 13,307.87-18,366.57-11,065.89

Finding the Fourth Proportional to 13,307.87, 18,366.57 and 11,065.89

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Solution

The fourth proportional to 13,307.87, 18,366.57 and 11,065.89 is: 15,272.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.87 : 18,366.57 = 11,065.89 : x
  2. Step 2: Convert to fraction form
    13,307.87/18,366.57 = 11,065.89/x
  3. Step 3: Cross multiply
    13,307.87x = 18,366.57 × 11,065.89
  4. Step 4: Simplify right side
    13,307.87x = 203,242,443.30
  5. Step 5: Solve for x
    x = 203,242,443.30/13,307.87
  6. Step 6: Final answer
    x = 15,272.35

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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.