Home / 15,642.31-23,458.49-5,109.93

Finding the Fourth Proportional to 15,642.31, 23,458.49 and 5,109.93

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Solution

The fourth proportional to 15,642.31, 23,458.49 and 5,109.93 is: 7,663.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,642.31 : 23,458.49 = 5,109.93 : x
  2. Step 2: Convert to fraction form
    15,642.31/23,458.49 = 5,109.93/x
  3. Step 3: Cross multiply
    15,642.31x = 23,458.49 × 5,109.93
  4. Step 4: Simplify right side
    15,642.31x = 119,871,124.51
  5. Step 5: Solve for x
    x = 119,871,124.51/15,642.31
  6. Step 6: Final answer
    x = 7,663.26

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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.