Home / 12,583.77-17,365.80-6,918.75

Finding the Fourth Proportional to 12,583.77, 17,365.80 and 6,918.75

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Solution

The fourth proportional to 12,583.77, 17,365.80 and 6,918.75 is: 9,547.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,583.77 : 17,365.80 = 6,918.75 : x
  2. Step 2: Convert to fraction form
    12,583.77/17,365.80 = 6,918.75/x
  3. Step 3: Cross multiply
    12,583.77x = 17,365.80 × 6,918.75
  4. Step 4: Simplify right side
    12,583.77x = 120,149,654.70
  5. Step 5: Solve for x
    x = 120,149,654.70/12,583.77
  6. Step 6: Final answer
    x = 9,547.99

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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.