Home / 19,010.10-28,515.15-5,159.10

Finding the Fourth Proportional to 19,010.10, 28,515.15 and 5,159.10

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Solution

The fourth proportional to 19,010.10, 28,515.15 and 5,159.10 is: 7,738.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,010.10 : 28,515.15 = 5,159.10 : x
  2. Step 2: Convert to fraction form
    19,010.10/28,515.15 = 5,159.10/x
  3. Step 3: Cross multiply
    19,010.10x = 28,515.15 × 5,159.10
  4. Step 4: Simplify right side
    19,010.10x = 147,112,510.37
  5. Step 5: Solve for x
    x = 147,112,510.37/19,010.10
  6. Step 6: Final answer
    x = 7,738.65

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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.