Home / 15,407.57-21,262.35-8,693.02

Finding the Fourth Proportional to 15,407.57, 21,262.35 and 8,693.02

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Solution

The fourth proportional to 15,407.57, 21,262.35 and 8,693.02 is: 11,996.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.57 : 21,262.35 = 8,693.02 : x
  2. Step 2: Convert to fraction form
    15,407.57/21,262.35 = 8,693.02/x
  3. Step 3: Cross multiply
    15,407.57x = 21,262.35 × 8,693.02
  4. Step 4: Simplify right side
    15,407.57x = 184,834,044.08
  5. Step 5: Solve for x
    x = 184,834,044.08/15,407.57
  6. Step 6: Final answer
    x = 11,996.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.