Home / 7,040.98-9,704.34-6,139.06

Finding the Fourth Proportional to 7,040.98, 9,704.34 and 6,139.06

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Solution

The fourth proportional to 7,040.98, 9,704.34 and 6,139.06 is: 8,461.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,040.98 : 9,704.34 = 6,139.06 : x
  2. Step 2: Convert to fraction form
    7,040.98/9,704.34 = 6,139.06/x
  3. Step 3: Cross multiply
    7,040.98x = 9,704.34 × 6,139.06
  4. Step 4: Simplify right side
    7,040.98x = 59,575,525.52
  5. Step 5: Solve for x
    x = 59,575,525.52/7,040.98
  6. Step 6: Final answer
    x = 8,461.25

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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.