Home / 13,411.36-18,508.06-7,361.88

Finding the Fourth Proportional to 13,411.36, 18,508.06 and 7,361.88

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Solution

The fourth proportional to 13,411.36, 18,508.06 and 7,361.88 is: 10,159.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.36 : 18,508.06 = 7,361.88 : x
  2. Step 2: Convert to fraction form
    13,411.36/18,508.06 = 7,361.88/x
  3. Step 3: Cross multiply
    13,411.36x = 18,508.06 × 7,361.88
  4. Step 4: Simplify right side
    13,411.36x = 136,254,116.75
  5. Step 5: Solve for x
    x = 136,254,116.75/13,411.36
  6. Step 6: Final answer
    x = 10,159.60

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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.