Home / 9,140.12-13,710.40-6,326.20

Finding the Fourth Proportional to 9,140.12, 13,710.40 and 6,326.20

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Solution

The fourth proportional to 9,140.12, 13,710.40 and 6,326.20 is: 9,489.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,140.12 : 13,710.40 = 6,326.20 : x
  2. Step 2: Convert to fraction form
    9,140.12/13,710.40 = 6,326.20/x
  3. Step 3: Cross multiply
    9,140.12x = 13,710.40 × 6,326.20
  4. Step 4: Simplify right side
    9,140.12x = 86,734,732.48
  5. Step 5: Solve for x
    x = 86,734,732.48/9,140.12
  6. Step 6: Final answer
    x = 9,489.45

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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.