Home / 19,719.16-29,564.14-9,318.76

Finding the Fourth Proportional to 19,719.16, 29,564.14 and 9,318.76

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Solution

The fourth proportional to 19,719.16, 29,564.14 and 9,318.76 is: 13,971.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.16 : 29,564.14 = 9,318.76 : x
  2. Step 2: Convert to fraction form
    19,719.16/29,564.14 = 9,318.76/x
  3. Step 3: Cross multiply
    19,719.16x = 29,564.14 × 9,318.76
  4. Step 4: Simplify right side
    19,719.16x = 275,501,125.27
  5. Step 5: Solve for x
    x = 275,501,125.27/19,719.16
  6. Step 6: Final answer
    x = 13,971.24

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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.