Home / 14,118.49-21,178.77-4,758.46

Finding the Fourth Proportional to 14,118.49, 21,178.77 and 4,758.46

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Solution

The fourth proportional to 14,118.49, 21,178.77 and 4,758.46 is: 7,138.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,118.49 : 21,178.77 = 4,758.46 : x
  2. Step 2: Convert to fraction form
    14,118.49/21,178.77 = 4,758.46/x
  3. Step 3: Cross multiply
    14,118.49x = 21,178.77 × 4,758.46
  4. Step 4: Simplify right side
    14,118.49x = 100,778,329.89
  5. Step 5: Solve for x
    x = 100,778,329.89/14,118.49
  6. Step 6: Final answer
    x = 7,138.04

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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.