Home / 21,258.04-29,336.18-11,697.69

Finding the Fourth Proportional to 21,258.04, 29,336.18 and 11,697.69

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Solution

The fourth proportional to 21,258.04, 29,336.18 and 11,697.69 is: 16,142.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,258.04 : 29,336.18 = 11,697.69 : x
  2. Step 2: Convert to fraction form
    21,258.04/29,336.18 = 11,697.69/x
  3. Step 3: Cross multiply
    21,258.04x = 29,336.18 × 11,697.69
  4. Step 4: Simplify right side
    21,258.04x = 343,165,526.65
  5. Step 5: Solve for x
    x = 343,165,526.65/21,258.04
  6. Step 6: Final answer
    x = 16,142.86

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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.