Home / 13,810.70-19,054.17-8,431.19

Finding the Fourth Proportional to 13,810.70, 19,054.17 and 8,431.19

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Solution

The fourth proportional to 13,810.70, 19,054.17 and 8,431.19 is: 11,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,810.70 : 19,054.17 = 8,431.19 : x
  2. Step 2: Convert to fraction form
    13,810.70/19,054.17 = 8,431.19/x
  3. Step 3: Cross multiply
    13,810.70x = 19,054.17 × 8,431.19
  4. Step 4: Simplify right side
    13,810.70x = 160,649,232.29
  5. Step 5: Solve for x
    x = 160,649,232.29/13,810.70
  6. Step 6: Final answer
    x = 11,632.23

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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.