Home / 13,085.10-19,628.46-4,320.09

Finding the Fourth Proportional to 13,085.10, 19,628.46 and 4,320.09

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Solution

The fourth proportional to 13,085.10, 19,628.46 and 4,320.09 is: 6,480.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.10 : 19,628.46 = 4,320.09 : x
  2. Step 2: Convert to fraction form
    13,085.10/19,628.46 = 4,320.09/x
  3. Step 3: Cross multiply
    13,085.10x = 19,628.46 × 4,320.09
  4. Step 4: Simplify right side
    13,085.10x = 84,796,713.76
  5. Step 5: Solve for x
    x = 84,796,713.76/13,085.10
  6. Step 6: Final answer
    x = 6,480.40

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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.