Home / 11,162.16-15,403.80-6,446.46

Finding the Fourth Proportional to 11,162.16, 15,403.80 and 6,446.46

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Solution

The fourth proportional to 11,162.16, 15,403.80 and 6,446.46 is: 8,896.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,162.16 : 15,403.80 = 6,446.46 : x
  2. Step 2: Convert to fraction form
    11,162.16/15,403.80 = 6,446.46/x
  3. Step 3: Cross multiply
    11,162.16x = 15,403.80 × 6,446.46
  4. Step 4: Simplify right side
    11,162.16x = 99,299,980.55
  5. Step 5: Solve for x
    x = 99,299,980.55/11,162.16
  6. Step 6: Final answer
    x = 8,896.13

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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.