Home / 15,834.60-21,836.79-11,810.31

Finding the Fourth Proportional to 15,834.60, 21,836.79 and 11,810.31

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Solution

The fourth proportional to 15,834.60, 21,836.79 and 11,810.31 is: 16,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,834.60 : 21,836.79 = 11,810.31 : x
  2. Step 2: Convert to fraction form
    15,834.60/21,836.79 = 11,810.31/x
  3. Step 3: Cross multiply
    15,834.60x = 21,836.79 × 11,810.31
  4. Step 4: Simplify right side
    15,834.60x = 257,899,259.30
  5. Step 5: Solve for x
    x = 257,899,259.30/15,834.60
  6. Step 6: Final answer
    x = 16,287.07

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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.