Home / 13,335.73-18,405.57-10,143.91

Finding the Fourth Proportional to 13,335.73, 18,405.57 and 10,143.91

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Solution

The fourth proportional to 13,335.73, 18,405.57 and 10,143.91 is: 14,000.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,335.73 : 18,405.57 = 10,143.91 : x
  2. Step 2: Convert to fraction form
    13,335.73/18,405.57 = 10,143.91/x
  3. Step 3: Cross multiply
    13,335.73x = 18,405.57 × 10,143.91
  4. Step 4: Simplify right side
    13,335.73x = 186,704,445.58
  5. Step 5: Solve for x
    x = 186,704,445.58/13,335.73
  6. Step 6: Final answer
    x = 14,000.32

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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.