Home / 11,353.18-15,666.21-6,316.60

Finding the Fourth Proportional to 11,353.18, 15,666.21 and 6,316.60

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Solution

The fourth proportional to 11,353.18, 15,666.21 and 6,316.60 is: 8,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,353.18 : 15,666.21 = 6,316.60 : x
  2. Step 2: Convert to fraction form
    11,353.18/15,666.21 = 6,316.60/x
  3. Step 3: Cross multiply
    11,353.18x = 15,666.21 × 6,316.60
  4. Step 4: Simplify right side
    11,353.18x = 98,957,182.09
  5. Step 5: Solve for x
    x = 98,957,182.09/11,353.18
  6. Step 6: Final answer
    x = 8,716.25

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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.