Home / 13,085.56-19,628.97-4,320.28

Finding the Fourth Proportional to 13,085.56, 19,628.97 and 4,320.28

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Solution

The fourth proportional to 13,085.56, 19,628.97 and 4,320.28 is: 6,480.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,085.56 : 19,628.97 = 4,320.28 : x
  2. Step 2: Convert to fraction form
    13,085.56/19,628.97 = 4,320.28/x
  3. Step 3: Cross multiply
    13,085.56x = 19,628.97 × 4,320.28
  4. Step 4: Simplify right side
    13,085.56x = 84,802,646.51
  5. Step 5: Solve for x
    x = 84,802,646.51/13,085.56
  6. Step 6: Final answer
    x = 6,480.63

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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.