Home / 15,407.56-21,262.26-8,693.20

Finding the Fourth Proportional to 15,407.56, 21,262.26 and 8,693.20

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Solution

The fourth proportional to 15,407.56, 21,262.26 and 8,693.20 is: 11,996.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,407.56 : 21,262.26 = 8,693.20 : x
  2. Step 2: Convert to fraction form
    15,407.56/21,262.26 = 8,693.20/x
  3. Step 3: Cross multiply
    15,407.56x = 21,262.26 × 8,693.20
  4. Step 4: Simplify right side
    15,407.56x = 184,837,078.63
  5. Step 5: Solve for x
    x = 184,837,078.63/15,407.56
  6. Step 6: Final answer
    x = 11,996.52

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1.5x scale

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.