Home / 12,715.53-19,062.36-4,929.81

Finding the Fourth Proportional to 12,715.53, 19,062.36 and 4,929.81

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Solution

The fourth proportional to 12,715.53, 19,062.36 and 4,929.81 is: 7,390.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715.53 : 19,062.36 = 4,929.81 : x
  2. Step 2: Convert to fraction form
    12,715.53/19,062.36 = 4,929.81/x
  3. Step 3: Cross multiply
    12,715.53x = 19,062.36 × 4,929.81
  4. Step 4: Simplify right side
    12,715.53x = 93,973,812.95
  5. Step 5: Solve for x
    x = 93,973,812.95/12,715.53
  6. Step 6: Final answer
    x = 7,390.48

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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.