Home / 11,709.72-16,159.50-6,404.64

Finding the Fourth Proportional to 11,709.72, 16,159.50 and 6,404.64

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Solution

The fourth proportional to 11,709.72, 16,159.50 and 6,404.64 is: 8,838.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.72 : 16,159.50 = 6,404.64 : x
  2. Step 2: Convert to fraction form
    11,709.72/16,159.50 = 6,404.64/x
  3. Step 3: Cross multiply
    11,709.72x = 16,159.50 × 6,404.64
  4. Step 4: Simplify right side
    11,709.72x = 103,495,780.08
  5. Step 5: Solve for x
    x = 103,495,780.08/11,709.72
  6. Step 6: Final answer
    x = 8,838.45

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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.