Home / 11,278.66-15,564.06-6,242.58

Finding the Fourth Proportional to 11,278.66, 15,564.06 and 6,242.58

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Solution

The fourth proportional to 11,278.66, 15,564.06 and 6,242.58 is: 8,614.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,278.66 : 15,564.06 = 6,242.58 : x
  2. Step 2: Convert to fraction form
    11,278.66/15,564.06 = 6,242.58/x
  3. Step 3: Cross multiply
    11,278.66x = 15,564.06 × 6,242.58
  4. Step 4: Simplify right side
    11,278.66x = 97,159,944.19
  5. Step 5: Solve for x
    x = 97,159,944.19/11,278.66
  6. Step 6: Final answer
    x = 8,614.49

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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.