Home / 13,919.99-19,210.30-7,952.31

Finding the Fourth Proportional to 13,919.99, 19,210.30 and 7,952.31

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Solution

The fourth proportional to 13,919.99, 19,210.30 and 7,952.31 is: 10,974.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,919.99 : 19,210.30 = 7,952.31 : x
  2. Step 2: Convert to fraction form
    13,919.99/19,210.30 = 7,952.31/x
  3. Step 3: Cross multiply
    13,919.99x = 19,210.30 × 7,952.31
  4. Step 4: Simplify right side
    13,919.99x = 152,766,240.91
  5. Step 5: Solve for x
    x = 152,766,240.91/13,919.99
  6. Step 6: Final answer
    x = 10,974.60

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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.