Home / 11,154.59-15,393.33-6,438.87

Finding the Fourth Proportional to 11,154.59, 15,393.33 and 6,438.87

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Solution

The fourth proportional to 11,154.59, 15,393.33 and 6,438.87 is: 8,885.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,154.59 : 15,393.33 = 6,438.87 : x
  2. Step 2: Convert to fraction form
    11,154.59/15,393.33 = 6,438.87/x
  3. Step 3: Cross multiply
    11,154.59x = 15,393.33 × 6,438.87
  4. Step 4: Simplify right side
    11,154.59x = 99,115,598.39
  5. Step 5: Solve for x
    x = 99,115,598.39/11,154.59
  6. Step 6: Final answer
    x = 8,885.64

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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.