Home / 15,863.19-21,891.21-9,490.06

Finding the Fourth Proportional to 15,863.19, 21,891.21 and 9,490.06

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Solution

The fourth proportional to 15,863.19, 21,891.21 and 9,490.06 is: 13,096.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,863.19 : 21,891.21 = 9,490.06 : x
  2. Step 2: Convert to fraction form
    15,863.19/21,891.21 = 9,490.06/x
  3. Step 3: Cross multiply
    15,863.19x = 21,891.21 × 9,490.06
  4. Step 4: Simplify right side
    15,863.19x = 207,748,818.39
  5. Step 5: Solve for x
    x = 207,748,818.39/15,863.19
  6. Step 6: Final answer
    x = 13,096.28

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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.