Home / 12,358.84-18,539.46-3,591.40

Finding the Fourth Proportional to 12,358.84, 18,539.46 and 3,591.40

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Solution

The fourth proportional to 12,358.84, 18,539.46 and 3,591.40 is: 5,387.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,358.84 : 18,539.46 = 3,591.40 : x
  2. Step 2: Convert to fraction form
    12,358.84/18,539.46 = 3,591.40/x
  3. Step 3: Cross multiply
    12,358.84x = 18,539.46 × 3,591.40
  4. Step 4: Simplify right side
    12,358.84x = 66,582,616.64
  5. Step 5: Solve for x
    x = 66,582,616.64/12,358.84
  6. Step 6: Final answer
    x = 5,387.45

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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.