Home / 11,451.96-15,803.60-6,416.40

Finding the Fourth Proportional to 11,451.96, 15,803.60 and 6,416.40

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Solution

The fourth proportional to 11,451.96, 15,803.60 and 6,416.40 is: 8,854.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,451.96 : 15,803.60 = 6,416.40 : x
  2. Step 2: Convert to fraction form
    11,451.96/15,803.60 = 6,416.40/x
  3. Step 3: Cross multiply
    11,451.96x = 15,803.60 × 6,416.40
  4. Step 4: Simplify right side
    11,451.96x = 101,402,186.96
  5. Step 5: Solve for x
    x = 101,402,186.96/11,451.96
  6. Step 6: Final answer
    x = 8,854.57

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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.