Home / 10,120.74-13,966.58-5,583.30

Finding the Fourth Proportional to 10,120.74, 13,966.58 and 5,583.30

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Solution

The fourth proportional to 10,120.74, 13,966.58 and 5,583.30 is: 7,704.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,120.74 : 13,966.58 = 5,583.30 : x
  2. Step 2: Convert to fraction form
    10,120.74/13,966.58 = 5,583.30/x
  3. Step 3: Cross multiply
    10,120.74x = 13,966.58 × 5,583.30
  4. Step 4: Simplify right side
    10,120.74x = 77,979,609.60
  5. Step 5: Solve for x
    x = 77,979,609.60/10,120.74
  6. Step 6: Final answer
    x = 7,704.93

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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.