Home / 12,539.39-18,803.10-4,641.55

Finding the Fourth Proportional to 12,539.39, 18,803.10 and 4,641.55

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Solution

The fourth proportional to 12,539.39, 18,803.10 and 4,641.55 is: 6,960.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,539.39 : 18,803.10 = 4,641.55 : x
  2. Step 2: Convert to fraction form
    12,539.39/18,803.10 = 4,641.55/x
  3. Step 3: Cross multiply
    12,539.39x = 18,803.10 × 4,641.55
  4. Step 4: Simplify right side
    12,539.39x = 87,275,434.79
  5. Step 5: Solve for x
    x = 87,275,434.79/12,539.39
  6. Step 6: Final answer
    x = 6,960.10

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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.