Home / 13,411.33-18,495.53-8,376.01

Finding the Fourth Proportional to 13,411.33, 18,495.53 and 8,376.01

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Solution

The fourth proportional to 13,411.33, 18,495.53 and 8,376.01 is: 11,551.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.33 : 18,495.53 = 8,376.01 : x
  2. Step 2: Convert to fraction form
    13,411.33/18,495.53 = 8,376.01/x
  3. Step 3: Cross multiply
    13,411.33x = 18,495.53 × 8,376.01
  4. Step 4: Simplify right side
    13,411.33x = 154,918,702.36
  5. Step 5: Solve for x
    x = 154,918,702.36/13,411.33
  6. Step 6: Final answer
    x = 11,551.33

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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.