Home / 14,199.40-19,595.52-7,911.90

Finding the Fourth Proportional to 14,199.40, 19,595.52 and 7,911.90

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Solution

The fourth proportional to 14,199.40, 19,595.52 and 7,911.90 is: 10,918.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,199.40 : 19,595.52 = 7,911.90 : x
  2. Step 2: Convert to fraction form
    14,199.40/19,595.52 = 7,911.90/x
  3. Step 3: Cross multiply
    14,199.40x = 19,595.52 × 7,911.90
  4. Step 4: Simplify right side
    14,199.40x = 155,037,794.69
  5. Step 5: Solve for x
    x = 155,037,794.69/14,199.40
  6. Step 6: Final answer
    x = 10,918.62

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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.