Home / 15,743.80-21,726.30-8,670.07

Finding the Fourth Proportional to 15,743.80, 21,726.30 and 8,670.07

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Solution

The fourth proportional to 15,743.80, 21,726.30 and 8,670.07 is: 11,964.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,743.80 : 21,726.30 = 8,670.07 : x
  2. Step 2: Convert to fraction form
    15,743.80/21,726.30 = 8,670.07/x
  3. Step 3: Cross multiply
    15,743.80x = 21,726.30 × 8,670.07
  4. Step 4: Simplify right side
    15,743.80x = 188,368,541.84
  5. Step 5: Solve for x
    x = 188,368,541.84/15,743.80
  6. Step 6: Final answer
    x = 11,964.62

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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.