Home / 26,215.53-39,314.79-11,420.07

Finding the Fourth Proportional to 26,215.53, 39,314.79 and 11,420.07

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Solution

The fourth proportional to 26,215.53, 39,314.79 and 11,420.07 is: 17,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,215.53 : 39,314.79 = 11,420.07 : x
  2. Step 2: Convert to fraction form
    26,215.53/39,314.79 = 11,420.07/x
  3. Step 3: Cross multiply
    26,215.53x = 39,314.79 × 11,420.07
  4. Step 4: Simplify right side
    26,215.53x = 448,977,653.84
  5. Step 5: Solve for x
    x = 448,977,653.84/26,215.53
  6. Step 6: Final answer
    x = 17,126.40

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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.