Home / 9,387.40-12,939.06-6,730.60

Finding the Fourth Proportional to 9,387.40, 12,939.06 and 6,730.60

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Solution

The fourth proportional to 9,387.40, 12,939.06 and 6,730.60 is: 9,277.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,387.40 : 12,939.06 = 6,730.60 : x
  2. Step 2: Convert to fraction form
    9,387.40/12,939.06 = 6,730.60/x
  3. Step 3: Cross multiply
    9,387.40x = 12,939.06 × 6,730.60
  4. Step 4: Simplify right side
    9,387.40x = 87,087,637.24
  5. Step 5: Solve for x
    x = 87,087,637.24/9,387.40
  6. Step 6: Final answer
    x = 9,277.08

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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.