Home / 15,444.28-21,305.26-9,769.47

Finding the Fourth Proportional to 15,444.28, 21,305.26 and 9,769.47

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Solution

The fourth proportional to 15,444.28, 21,305.26 and 9,769.47 is: 13,476.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,444.28 : 21,305.26 = 9,769.47 : x
  2. Step 2: Convert to fraction form
    15,444.28/21,305.26 = 9,769.47/x
  3. Step 3: Cross multiply
    15,444.28x = 21,305.26 × 9,769.47
  4. Step 4: Simplify right side
    15,444.28x = 208,141,098.41
  5. Step 5: Solve for x
    x = 208,141,098.41/15,444.28
  6. Step 6: Final answer
    x = 13,476.91

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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.