Home / 14,291.80-21,423.57-6,782.17

Finding the Fourth Proportional to 14,291.80, 21,423.57 and 6,782.17

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Solution

The fourth proportional to 14,291.80, 21,423.57 and 6,782.17 is: 10,166.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,291.80 : 21,423.57 = 6,782.17 : x
  2. Step 2: Convert to fraction form
    14,291.80/21,423.57 = 6,782.17/x
  3. Step 3: Cross multiply
    14,291.80x = 21,423.57 × 6,782.17
  4. Step 4: Simplify right side
    14,291.80x = 145,298,186.63
  5. Step 5: Solve for x
    x = 145,298,186.63/14,291.80
  6. Step 6: Final answer
    x = 10,166.55

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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.