Home / 13,154.34-19,720.40-5,753.18

Finding the Fourth Proportional to 13,154.34, 19,720.40 and 5,753.18

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Solution

The fourth proportional to 13,154.34, 19,720.40 and 5,753.18 is: 8,624.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,154.34 : 19,720.40 = 5,753.18 : x
  2. Step 2: Convert to fraction form
    13,154.34/19,720.40 = 5,753.18/x
  3. Step 3: Cross multiply
    13,154.34x = 19,720.40 × 5,753.18
  4. Step 4: Simplify right side
    13,154.34x = 113,455,010.87
  5. Step 5: Solve for x
    x = 113,455,010.87/13,154.34
  6. Step 6: Final answer
    x = 8,624.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.