Home / 13,852.92-19,111.23-8,471.28

Finding the Fourth Proportional to 13,852.92, 19,111.23 and 8,471.28

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Solution

The fourth proportional to 13,852.92, 19,111.23 and 8,471.28 is: 11,686.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,852.92 : 19,111.23 = 8,471.28 : x
  2. Step 2: Convert to fraction form
    13,852.92/19,111.23 = 8,471.28/x
  3. Step 3: Cross multiply
    13,852.92x = 19,111.23 × 8,471.28
  4. Step 4: Simplify right side
    13,852.92x = 161,896,580.47
  5. Step 5: Solve for x
    x = 161,896,580.47/13,852.92
  6. Step 6: Final answer
    x = 11,686.82

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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.