Home / 9,140.67-13,686.30-4,748.90

Finding the Fourth Proportional to 9,140.67, 13,686.30 and 4,748.90

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Solution

The fourth proportional to 9,140.67, 13,686.30 and 4,748.90 is: 7,110.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.67 : 13,686.30 = 4,748.90 : x
  2. Step 2: Convert to fraction form
    9,140.67/13,686.30 = 4,748.90/x
  3. Step 3: Cross multiply
    9,140.67x = 13,686.30 × 4,748.90
  4. Step 4: Simplify right side
    9,140.67x = 64,994,801.64
  5. Step 5: Solve for x
    x = 64,994,801.64/9,140.67
  6. Step 6: Final answer
    x = 7,110.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.