Home / 13,479.49-18,602.88-8,177.23

Finding the Fourth Proportional to 13,479.49, 18,602.88 and 8,177.23

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Solution

The fourth proportional to 13,479.49, 18,602.88 and 8,177.23 is: 11,285.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,479.49 : 18,602.88 = 8,177.23 : x
  2. Step 2: Convert to fraction form
    13,479.49/18,602.88 = 8,177.23/x
  3. Step 3: Cross multiply
    13,479.49x = 18,602.88 × 8,177.23
  4. Step 4: Simplify right side
    13,479.49x = 152,119,935.41
  5. Step 5: Solve for x
    x = 152,119,935.41/13,479.49
  6. Step 6: Final answer
    x = 11,285.29

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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.