Home / 12,570.11-17,346.89-6,905.00

Finding the Fourth Proportional to 12,570.11, 17,346.89 and 6,905.00

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Solution

The fourth proportional to 12,570.11, 17,346.89 and 6,905.00 is: 9,528.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,570.11 : 17,346.89 = 6,905.00 : x
  2. Step 2: Convert to fraction form
    12,570.11/17,346.89 = 6,905.00/x
  3. Step 3: Cross multiply
    12,570.11x = 17,346.89 × 6,905.00
  4. Step 4: Simplify right side
    12,570.11x = 119,780,205.98
  5. Step 5: Solve for x
    x = 119,780,205.98/12,570.11
  6. Step 6: Final answer
    x = 9,528.97

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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.