Home / 19,111.11-28,666.14-5,071.19

Finding the Fourth Proportional to 19,111.11, 28,666.14 and 5,071.19

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Solution

The fourth proportional to 19,111.11, 28,666.14 and 5,071.19 is: 7,606.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,111.11 : 28,666.14 = 5,071.19 : x
  2. Step 2: Convert to fraction form
    19,111.11/28,666.14 = 5,071.19/x
  3. Step 3: Cross multiply
    19,111.11x = 28,666.14 × 5,071.19
  4. Step 4: Simplify right side
    19,111.11x = 145,371,299.18
  5. Step 5: Solve for x
    x = 145,371,299.18/19,111.11
  6. Step 6: Final answer
    x = 7,606.64

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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.