Home / 13,901.16-19,184.40-8,240.34

Finding the Fourth Proportional to 13,901.16, 19,184.40 and 8,240.34

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Solution

The fourth proportional to 13,901.16, 19,184.40 and 8,240.34 is: 11,372.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,901.16 : 19,184.40 = 8,240.34 : x
  2. Step 2: Convert to fraction form
    13,901.16/19,184.40 = 8,240.34/x
  3. Step 3: Cross multiply
    13,901.16x = 19,184.40 × 8,240.34
  4. Step 4: Simplify right side
    13,901.16x = 158,085,978.70
  5. Step 5: Solve for x
    x = 158,085,978.70/13,901.16
  6. Step 6: Final answer
    x = 11,372.14

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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.