Home / 21,260.12-29,337.63-11,698.07

Finding the Fourth Proportional to 21,260.12, 29,337.63 and 11,698.07

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Solution

The fourth proportional to 21,260.12, 29,337.63 and 11,698.07 is: 16,142.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,260.12 : 29,337.63 = 11,698.07 : x
  2. Step 2: Convert to fraction form
    21,260.12/29,337.63 = 11,698.07/x
  3. Step 3: Cross multiply
    21,260.12x = 29,337.63 × 11,698.07
  4. Step 4: Simplify right side
    21,260.12x = 343,193,502.69
  5. Step 5: Solve for x
    x = 343,193,502.69/21,260.12
  6. Step 6: Final answer
    x = 16,142.60

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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.