Home / 13,411.60-18,495.84-8,376.24

Finding the Fourth Proportional to 13,411.60, 18,495.84 and 8,376.24

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Solution

The fourth proportional to 13,411.60, 18,495.84 and 8,376.24 is: 11,551.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,411.60 : 18,495.84 = 8,376.24 : x
  2. Step 2: Convert to fraction form
    13,411.60/18,495.84 = 8,376.24/x
  3. Step 3: Cross multiply
    13,411.60x = 18,495.84 × 8,376.24
  4. Step 4: Simplify right side
    13,411.60x = 154,925,594.84
  5. Step 5: Solve for x
    x = 154,925,594.84/13,411.60
  6. Step 6: Final answer
    x = 11,551.61

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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.