Home / 14,139.04-21,176.24-6,748.68

Finding the Fourth Proportional to 14,139.04, 21,176.24 and 6,748.68

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Solution

The fourth proportional to 14,139.04, 21,176.24 and 6,748.68 is: 10,107.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,139.04 : 21,176.24 = 6,748.68 : x
  2. Step 2: Convert to fraction form
    14,139.04/21,176.24 = 6,748.68/x
  3. Step 3: Cross multiply
    14,139.04x = 21,176.24 × 6,748.68
  4. Step 4: Simplify right side
    14,139.04x = 142,911,667.36
  5. Step 5: Solve for x
    x = 142,911,667.36/14,139.04
  6. Step 6: Final answer
    x = 10,107.59

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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.