Home / 11,445.61-15,793.87-6,665.35

Finding the Fourth Proportional to 11,445.61, 15,793.87 and 6,665.35

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Solution

The fourth proportional to 11,445.61, 15,793.87 and 6,665.35 is: 9,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,445.61 : 15,793.87 = 6,665.35 : x
  2. Step 2: Convert to fraction form
    11,445.61/15,793.87 = 6,665.35/x
  3. Step 3: Cross multiply
    11,445.61x = 15,793.87 × 6,665.35
  4. Step 4: Simplify right side
    11,445.61x = 105,271,638.08
  5. Step 5: Solve for x
    x = 105,271,638.08/11,445.61
  6. Step 6: Final answer
    x = 9,197.56

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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.