Home / 15,444.22-21,313.02-8,370.64

Finding the Fourth Proportional to 15,444.22, 21,313.02 and 8,370.64

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Solution

The fourth proportional to 15,444.22, 21,313.02 and 8,370.64 is: 11,551.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.22 : 21,313.02 = 8,370.64 : x
  2. Step 2: Convert to fraction form
    15,444.22/21,313.02 = 8,370.64/x
  3. Step 3: Cross multiply
    15,444.22x = 21,313.02 × 8,370.64
  4. Step 4: Simplify right side
    15,444.22x = 178,403,617.73
  5. Step 5: Solve for x
    x = 178,403,617.73/15,444.22
  6. Step 6: Final answer
    x = 11,551.48

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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.