Home / 15,345.72-23,019.05-5,985.36

Finding the Fourth Proportional to 15,345.72, 23,019.05 and 5,985.36

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Solution

The fourth proportional to 15,345.72, 23,019.05 and 5,985.36 is: 8,978.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,345.72 : 23,019.05 = 5,985.36 : x
  2. Step 2: Convert to fraction form
    15,345.72/23,019.05 = 5,985.36/x
  3. Step 3: Cross multiply
    15,345.72x = 23,019.05 × 5,985.36
  4. Step 4: Simplify right side
    15,345.72x = 137,777,316.07
  5. Step 5: Solve for x
    x = 137,777,316.07/15,345.72
  6. Step 6: Final answer
    x = 8,978.22

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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.