Home / 13,718.53-18,930.48-7,750.72

Finding the Fourth Proportional to 13,718.53, 18,930.48 and 7,750.72

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Solution

The fourth proportional to 13,718.53, 18,930.48 and 7,750.72 is: 10,695.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,718.53 : 18,930.48 = 7,750.72 : x
  2. Step 2: Convert to fraction form
    13,718.53/18,930.48 = 7,750.72/x
  3. Step 3: Cross multiply
    13,718.53x = 18,930.48 × 7,750.72
  4. Step 4: Simplify right side
    13,718.53x = 146,724,849.95
  5. Step 5: Solve for x
    x = 146,724,849.95/13,718.53
  6. Step 6: Final answer
    x = 10,695.38

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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.