Home / 26,782.16-40,176.72-9,912.87

Finding the Fourth Proportional to 26,782.16, 40,176.72 and 9,912.87

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Solution

The fourth proportional to 26,782.16, 40,176.72 and 9,912.87 is: 14,870.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,782.16 : 40,176.72 = 9,912.87 : x
  2. Step 2: Convert to fraction form
    26,782.16/40,176.72 = 9,912.87/x
  3. Step 3: Cross multiply
    26,782.16x = 40,176.72 × 9,912.87
  4. Step 4: Simplify right side
    26,782.16x = 398,266,602.39
  5. Step 5: Solve for x
    x = 398,266,602.39/26,782.16
  6. Step 6: Final answer
    x = 14,870.60

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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.