Home / 12,390.01-17,098.34-6,724.81

Finding the Fourth Proportional to 12,390.01, 17,098.34 and 6,724.81

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Solution

The fourth proportional to 12,390.01, 17,098.34 and 6,724.81 is: 9,280.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,390.01 : 17,098.34 = 6,724.81 : x
  2. Step 2: Convert to fraction form
    12,390.01/17,098.34 = 6,724.81/x
  3. Step 3: Cross multiply
    12,390.01x = 17,098.34 × 6,724.81
  4. Step 4: Simplify right side
    12,390.01x = 114,983,002.32
  5. Step 5: Solve for x
    x = 114,983,002.32/12,390.01
  6. Step 6: Final answer
    x = 9,280.30

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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.