Home / 12,207.93-16,848.20-7,428.22

Finding the Fourth Proportional to 12,207.93, 16,848.20 and 7,428.22

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Solution

The fourth proportional to 12,207.93, 16,848.20 and 7,428.22 is: 10,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,207.93 : 16,848.20 = 7,428.22 : x
  2. Step 2: Convert to fraction form
    12,207.93/16,848.20 = 7,428.22/x
  3. Step 3: Cross multiply
    12,207.93x = 16,848.20 × 7,428.22
  4. Step 4: Simplify right side
    12,207.93x = 125,152,051.96
  5. Step 5: Solve for x
    x = 125,152,051.96/12,207.93
  6. Step 6: Final answer
    x = 10,251.70

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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.