Home / 15,712.72-23,570.56-4,619.40

Finding the Fourth Proportional to 15,712.72, 23,570.56 and 4,619.40

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Solution

The fourth proportional to 15,712.72, 23,570.56 and 4,619.40 is: 6,929.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,712.72 : 23,570.56 = 4,619.40 : x
  2. Step 2: Convert to fraction form
    15,712.72/23,570.56 = 4,619.40/x
  3. Step 3: Cross multiply
    15,712.72x = 23,570.56 × 4,619.40
  4. Step 4: Simplify right side
    15,712.72x = 108,881,844.86
  5. Step 5: Solve for x
    x = 108,881,844.86/15,712.72
  6. Step 6: Final answer
    x = 6,929.54

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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.