Home / 7,221.02-9,966.66-4,236.98

Finding the Fourth Proportional to 7,221.02, 9,966.66 and 4,236.98

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Solution

The fourth proportional to 7,221.02, 9,966.66 and 4,236.98 is: 5,848.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,221.02 : 9,966.66 = 4,236.98 : x
  2. Step 2: Convert to fraction form
    7,221.02/9,966.66 = 4,236.98/x
  3. Step 3: Cross multiply
    7,221.02x = 9,966.66 × 4,236.98
  4. Step 4: Simplify right side
    7,221.02x = 42,228,539.09
  5. Step 5: Solve for x
    x = 42,228,539.09/7,221.02
  6. Step 6: Final answer
    x = 5,848.00

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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.