Home / 15,447.06-21,316.94-8,373.48

Finding the Fourth Proportional to 15,447.06, 21,316.94 and 8,373.48

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Solution

The fourth proportional to 15,447.06, 21,316.94 and 8,373.48 is: 11,555.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,447.06 : 21,316.94 = 8,373.48 : x
  2. Step 2: Convert to fraction form
    15,447.06/21,316.94 = 8,373.48/x
  3. Step 3: Cross multiply
    15,447.06x = 21,316.94 × 8,373.48
  4. Step 4: Simplify right side
    15,447.06x = 178,496,970.75
  5. Step 5: Solve for x
    x = 178,496,970.75/15,447.06
  6. Step 6: Final answer
    x = 11,555.40

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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.