Home / 9,704.12-13,390.80-5,454.20

Finding the Fourth Proportional to 9,704.12, 13,390.80 and 5,454.20

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Solution

The fourth proportional to 9,704.12, 13,390.80 and 5,454.20 is: 7,526.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,704.12 : 13,390.80 = 5,454.20 : x
  2. Step 2: Convert to fraction form
    9,704.12/13,390.80 = 5,454.20/x
  3. Step 3: Cross multiply
    9,704.12x = 13,390.80 × 5,454.20
  4. Step 4: Simplify right side
    9,704.12x = 73,036,101.36
  5. Step 5: Solve for x
    x = 73,036,101.36/9,704.12
  6. Step 6: Final answer
    x = 7,526.30

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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.