Home / 12,896.86-17,798.75-7,231.52

Finding the Fourth Proportional to 12,896.86, 17,798.75 and 7,231.52

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Solution

The fourth proportional to 12,896.86, 17,798.75 and 7,231.52 is: 9,980.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,896.86 : 17,798.75 = 7,231.52 : x
  2. Step 2: Convert to fraction form
    12,896.86/17,798.75 = 7,231.52/x
  3. Step 3: Cross multiply
    12,896.86x = 17,798.75 × 7,231.52
  4. Step 4: Simplify right side
    12,896.86x = 128,711,935.95
  5. Step 5: Solve for x
    x = 128,711,935.95/12,896.86
  6. Step 6: Final answer
    x = 9,980.10

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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.