Home / 12,570.58-17,347.62-6,905.86

Finding the Fourth Proportional to 12,570.58, 17,347.62 and 6,905.86

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Solution

The fourth proportional to 12,570.58, 17,347.62 and 6,905.86 is: 9,530.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.58 : 17,347.62 = 6,905.86 : x
  2. Step 2: Convert to fraction form
    12,570.58/17,347.62 = 6,905.86/x
  3. Step 3: Cross multiply
    12,570.58x = 17,347.62 × 6,905.86
  4. Step 4: Simplify right side
    12,570.58x = 119,800,235.05
  5. Step 5: Solve for x
    x = 119,800,235.05/12,570.58
  6. Step 6: Final answer
    x = 9,530.21

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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.