Home / 8,219.40-11,347.02-5,705.88

Finding the Fourth Proportional to 8,219.40, 11,347.02 and 5,705.88

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Solution

The fourth proportional to 8,219.40, 11,347.02 and 5,705.88 is: 7,877.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,219.40 : 11,347.02 = 5,705.88 : x
  2. Step 2: Convert to fraction form
    8,219.40/11,347.02 = 5,705.88/x
  3. Step 3: Cross multiply
    8,219.40x = 11,347.02 × 5,705.88
  4. Step 4: Simplify right side
    8,219.40x = 64,744,734.48
  5. Step 5: Solve for x
    x = 64,744,734.48/8,219.40
  6. Step 6: Final answer
    x = 7,877.06

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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.