Home / 9,357.93-12,913.61-5,166.09

Finding the Fourth Proportional to 9,357.93, 12,913.61 and 5,166.09

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Solution

The fourth proportional to 9,357.93, 12,913.61 and 5,166.09 is: 7,129.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.93 : 12,913.61 = 5,166.09 : x
  2. Step 2: Convert to fraction form
    9,357.93/12,913.61 = 5,166.09/x
  3. Step 3: Cross multiply
    9,357.93x = 12,913.61 × 5,166.09
  4. Step 4: Simplify right side
    9,357.93x = 66,712,845.65
  5. Step 5: Solve for x
    x = 66,712,845.65/9,357.93
  6. Step 6: Final answer
    x = 7,129.02

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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.