Home / 9,389.40-12,959.52-6,203.20

Finding the Fourth Proportional to 9,389.40, 12,959.52 and 6,203.20

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Solution

The fourth proportional to 9,389.40, 12,959.52 and 6,203.20 is: 8,561.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,389.40 : 12,959.52 = 6,203.20 : x
  2. Step 2: Convert to fraction form
    9,389.40/12,959.52 = 6,203.20/x
  3. Step 3: Cross multiply
    9,389.40x = 12,959.52 × 6,203.20
  4. Step 4: Simplify right side
    9,389.40x = 80,390,494.46
  5. Step 5: Solve for x
    x = 80,390,494.46/9,389.40
  6. Step 6: Final answer
    x = 8,561.84

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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.