Home / 26,953.26-40,437.76-7,978.40

Finding the Fourth Proportional to 26,953.26, 40,437.76 and 7,978.40

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Solution

The fourth proportional to 26,953.26, 40,437.76 and 7,978.40 is: 11,969.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,953.26 : 40,437.76 = 7,978.40 : x
  2. Step 2: Convert to fraction form
    26,953.26/40,437.76 = 7,978.40/x
  3. Step 3: Cross multiply
    26,953.26x = 40,437.76 × 7,978.40
  4. Step 4: Simplify right side
    26,953.26x = 322,628,546.41
  5. Step 5: Solve for x
    x = 322,628,546.41/26,953.26
  6. Step 6: Final answer
    x = 11,969.93

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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.