Home / 13,929.44-19,222.63-7,641.81

Finding the Fourth Proportional to 13,929.44, 19,222.63 and 7,641.81

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Solution

The fourth proportional to 13,929.44, 19,222.63 and 7,641.81 is: 10,545.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,929.44 : 19,222.63 = 7,641.81 : x
  2. Step 2: Convert to fraction form
    13,929.44/19,222.63 = 7,641.81/x
  3. Step 3: Cross multiply
    13,929.44x = 19,222.63 × 7,641.81
  4. Step 4: Simplify right side
    13,929.44x = 146,895,686.16
  5. Step 5: Solve for x
    x = 146,895,686.16/13,929.44
  6. Step 6: Final answer
    x = 10,545.70

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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.