Home / 15,817.06-21,826.02-8,742.52

Finding the Fourth Proportional to 15,817.06, 21,826.02 and 8,742.52

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Solution

The fourth proportional to 15,817.06, 21,826.02 and 8,742.52 is: 12,063.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,817.06 : 21,826.02 = 8,742.52 : x
  2. Step 2: Convert to fraction form
    15,817.06/21,826.02 = 8,742.52/x
  3. Step 3: Cross multiply
    15,817.06x = 21,826.02 × 8,742.52
  4. Step 4: Simplify right side
    15,817.06x = 190,814,416.37
  5. Step 5: Solve for x
    x = 190,814,416.37/15,817.06
  6. Step 6: Final answer
    x = 12,063.84

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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.