Home / 26,859.12-40,285.47-7,139.19

Finding the Fourth Proportional to 26,859.12, 40,285.47 and 7,139.19

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Solution

The fourth proportional to 26,859.12, 40,285.47 and 7,139.19 is: 10,707.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,859.12 : 40,285.47 = 7,139.19 : x
  2. Step 2: Convert to fraction form
    26,859.12/40,285.47 = 7,139.19/x
  3. Step 3: Cross multiply
    26,859.12x = 40,285.47 × 7,139.19
  4. Step 4: Simplify right side
    26,859.12x = 287,605,624.57
  5. Step 5: Solve for x
    x = 287,605,624.57/26,859.12
  6. Step 6: Final answer
    x = 10,707.93

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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.