Home / 12,566.36-18,853.85-7,880.71

Finding the Fourth Proportional to 12,566.36, 18,853.85 and 7,880.71

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Solution

The fourth proportional to 12,566.36, 18,853.85 and 7,880.71 is: 11,823.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,566.36 : 18,853.85 = 7,880.71 : x
  2. Step 2: Convert to fraction form
    12,566.36/18,853.85 = 7,880.71/x
  3. Step 3: Cross multiply
    12,566.36x = 18,853.85 × 7,880.71
  4. Step 4: Simplify right side
    12,566.36x = 148,581,724.23
  5. Step 5: Solve for x
    x = 148,581,724.23/12,566.36
  6. Step 6: Final answer
    x = 11,823.77

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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.