Home / 12,858.04-17,743.90-7,192.92

Finding the Fourth Proportional to 12,858.04, 17,743.90 and 7,192.92

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Solution

The fourth proportional to 12,858.04, 17,743.90 and 7,192.92 is: 9,926.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,858.04 : 17,743.90 = 7,192.92 : x
  2. Step 2: Convert to fraction form
    12,858.04/17,743.90 = 7,192.92/x
  3. Step 3: Cross multiply
    12,858.04x = 17,743.90 × 7,192.92
  4. Step 4: Simplify right side
    12,858.04x = 127,630,453.19
  5. Step 5: Solve for x
    x = 127,630,453.19/12,858.04
  6. Step 6: Final answer
    x = 9,926.12

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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.