Home / 10,948.45-16,422.51-7,429.71

Finding the Fourth Proportional to 10,948.45, 16,422.51 and 7,429.71

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Solution

The fourth proportional to 10,948.45, 16,422.51 and 7,429.71 is: 11,144.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,948.45 : 16,422.51 = 7,429.71 : x
  2. Step 2: Convert to fraction form
    10,948.45/16,422.51 = 7,429.71/x
  3. Step 3: Cross multiply
    10,948.45x = 16,422.51 × 7,429.71
  4. Step 4: Simplify right side
    10,948.45x = 122,014,486.77
  5. Step 5: Solve for x
    x = 122,014,486.77/10,948.45
  6. Step 6: Final answer
    x = 11,144.45

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