Home / 12,718.06-19,085.56-5,227.76

Finding the Fourth Proportional to 12,718.06, 19,085.56 and 5,227.76

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Solution

The fourth proportional to 12,718.06, 19,085.56 and 5,227.76 is: 7,845.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,718.06 : 19,085.56 = 5,227.76 : x
  2. Step 2: Convert to fraction form
    12,718.06/19,085.56 = 5,227.76/x
  3. Step 3: Cross multiply
    12,718.06x = 19,085.56 × 5,227.76
  4. Step 4: Simplify right side
    12,718.06x = 99,774,761.79
  5. Step 5: Solve for x
    x = 99,774,761.79/12,718.06
  6. Step 6: Final answer
    x = 7,845.13

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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.