Home / 11,420.27-15,748.61-8,594.40

Finding the Fourth Proportional to 11,420.27, 15,748.61 and 8,594.40

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Solution

The fourth proportional to 11,420.27, 15,748.61 and 8,594.40 is: 11,851.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,420.27 : 15,748.61 = 8,594.40 : x
  2. Step 2: Convert to fraction form
    11,420.27/15,748.61 = 8,594.40/x
  3. Step 3: Cross multiply
    11,420.27x = 15,748.61 × 8,594.40
  4. Step 4: Simplify right side
    11,420.27x = 135,349,817.42
  5. Step 5: Solve for x
    x = 135,349,817.42/11,420.27
  6. Step 6: Final answer
    x = 11,851.72

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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.