Home / 15,816.25-21,827.37-8,742.52

Finding the Fourth Proportional to 15,816.25, 21,827.37 and 8,742.52

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Solution

The fourth proportional to 15,816.25, 21,827.37 and 8,742.52 is: 12,065.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,816.25 : 21,827.37 = 8,742.52 : x
  2. Step 2: Convert to fraction form
    15,816.25/21,827.37 = 8,742.52/x
  3. Step 3: Cross multiply
    15,816.25x = 21,827.37 × 8,742.52
  4. Step 4: Simplify right side
    15,816.25x = 190,826,218.77
  5. Step 5: Solve for x
    x = 190,826,218.77/15,816.25
  6. Step 6: Final answer
    x = 12,065.20

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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.