Home / 15,726.04-21,707.27-9,761.20

Finding the Fourth Proportional to 15,726.04, 21,707.27 and 9,761.20

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Solution

The fourth proportional to 15,726.04, 21,707.27 and 9,761.20 is: 13,473.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,726.04 : 21,707.27 = 9,761.20 : x
  2. Step 2: Convert to fraction form
    15,726.04/21,707.27 = 9,761.20/x
  3. Step 3: Cross multiply
    15,726.04x = 21,707.27 × 9,761.20
  4. Step 4: Simplify right side
    15,726.04x = 211,889,003.92
  5. Step 5: Solve for x
    x = 211,889,003.92/15,726.04
  6. Step 6: Final answer
    x = 13,473.77

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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.