Home / 13,246.89-18,272.59-7,865.67

Finding the Fourth Proportional to 13,246.89, 18,272.59 and 7,865.67

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Solution

The fourth proportional to 13,246.89, 18,272.59 and 7,865.67 is: 10,849.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,246.89 : 18,272.59 = 7,865.67 : x
  2. Step 2: Convert to fraction form
    13,246.89/18,272.59 = 7,865.67/x
  3. Step 3: Cross multiply
    13,246.89x = 18,272.59 × 7,865.67
  4. Step 4: Simplify right side
    13,246.89x = 143,726,032.29
  5. Step 5: Solve for x
    x = 143,726,032.29/13,246.89
  6. Step 6: Final answer
    x = 10,849.80

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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.