Home / 26,424.60-39,642.07-9,784.78

Finding the Fourth Proportional to 26,424.60, 39,642.07 and 9,784.78

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Solution

The fourth proportional to 26,424.60, 39,642.07 and 9,784.78 is: 14,679.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,424.60 : 39,642.07 = 9,784.78 : x
  2. Step 2: Convert to fraction form
    26,424.60/39,642.07 = 9,784.78/x
  3. Step 3: Cross multiply
    26,424.60x = 39,642.07 × 9,784.78
  4. Step 4: Simplify right side
    26,424.60x = 387,888,933.69
  5. Step 5: Solve for x
    x = 387,888,933.69/26,424.60
  6. Step 6: Final answer
    x = 14,679.08

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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.