Home / 11,153.26-15,390.93-6,437.26

Finding the Fourth Proportional to 11,153.26, 15,390.93 and 6,437.26

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Solution

The fourth proportional to 11,153.26, 15,390.93 and 6,437.26 is: 8,883.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,153.26 : 15,390.93 = 6,437.26 : x
  2. Step 2: Convert to fraction form
    11,153.26/15,390.93 = 6,437.26/x
  3. Step 3: Cross multiply
    11,153.26x = 15,390.93 × 6,437.26
  4. Step 4: Simplify right side
    11,153.26x = 99,075,418.05
  5. Step 5: Solve for x
    x = 99,075,418.05/11,153.26
  6. Step 6: Final answer
    x = 8,883.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.