Home / 26,140.56-39,210.80-6,419.20

Finding the Fourth Proportional to 26,140.56, 39,210.80 and 6,419.20

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Solution

The fourth proportional to 26,140.56, 39,210.80 and 6,419.20 is: 9,628.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,140.56 : 39,210.80 = 6,419.20 : x
  2. Step 2: Convert to fraction form
    26,140.56/39,210.80 = 6,419.20/x
  3. Step 3: Cross multiply
    26,140.56x = 39,210.80 × 6,419.20
  4. Step 4: Simplify right side
    26,140.56x = 251,701,967.36
  5. Step 5: Solve for x
    x = 251,701,967.36/26,140.56
  6. Step 6: Final answer
    x = 9,628.79

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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.