Home / 12,555.42-17,325.82-6,890.08

Finding the Fourth Proportional to 12,555.42, 17,325.82 and 6,890.08

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Solution

The fourth proportional to 12,555.42, 17,325.82 and 6,890.08 is: 9,507.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,555.42 : 17,325.82 = 6,890.08 : x
  2. Step 2: Convert to fraction form
    12,555.42/17,325.82 = 6,890.08/x
  3. Step 3: Cross multiply
    12,555.42x = 17,325.82 × 6,890.08
  4. Step 4: Simplify right side
    12,555.42x = 119,376,244.89
  5. Step 5: Solve for x
    x = 119,376,244.89/12,555.42
  6. Step 6: Final answer
    x = 9,507.94

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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.