Home / 26,865.69-40,298.67-7,145.70

Finding the Fourth Proportional to 26,865.69, 40,298.67 and 7,145.70

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Solution

The fourth proportional to 26,865.69, 40,298.67 and 7,145.70 is: 10,718.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,865.69 : 40,298.67 = 7,145.70 : x
  2. Step 2: Convert to fraction form
    26,865.69/40,298.67 = 7,145.70/x
  3. Step 3: Cross multiply
    26,865.69x = 40,298.67 × 7,145.70
  4. Step 4: Simplify right side
    26,865.69x = 287,962,206.22
  5. Step 5: Solve for x
    x = 287,962,206.22/26,865.69
  6. Step 6: Final answer
    x = 10,718.59

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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.