Home / 11,698.07-16,143.65-7,160.65

Finding the Fourth Proportional to 11,698.07, 16,143.65 and 7,160.65

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Solution

The fourth proportional to 11,698.07, 16,143.65 and 7,160.65 is: 9,881.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,698.07 : 16,143.65 = 7,160.65 : x
  2. Step 2: Convert to fraction form
    11,698.07/16,143.65 = 7,160.65/x
  3. Step 3: Cross multiply
    11,698.07x = 16,143.65 × 7,160.65
  4. Step 4: Simplify right side
    11,698.07x = 115,599,068.87
  5. Step 5: Solve for x
    x = 115,599,068.87/11,698.07
  6. Step 6: Final answer
    x = 9,881.90

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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.