Home / 11,709.75-16,159.80-6,404.93

Finding the Fourth Proportional to 11,709.75, 16,159.80 and 6,404.93

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Solution

The fourth proportional to 11,709.75, 16,159.80 and 6,404.93 is: 8,838.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,709.75 : 16,159.80 = 6,404.93 : x
  2. Step 2: Convert to fraction form
    11,709.75/16,159.80 = 6,404.93/x
  3. Step 3: Cross multiply
    11,709.75x = 16,159.80 × 6,404.93
  4. Step 4: Simplify right side
    11,709.75x = 103,502,387.81
  5. Step 5: Solve for x
    x = 103,502,387.81/11,709.75
  6. Step 6: Final answer
    x = 8,838.99

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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.