Home / 11,312.80-15,619.75-7,544.85

Finding the Fourth Proportional to 11,312.80, 15,619.75 and 7,544.85

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Solution

The fourth proportional to 11,312.80, 15,619.75 and 7,544.85 is: 10,417.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.80 : 15,619.75 = 7,544.85 : x
  2. Step 2: Convert to fraction form
    11,312.80/15,619.75 = 7,544.85/x
  3. Step 3: Cross multiply
    11,312.80x = 15,619.75 × 7,544.85
  4. Step 4: Simplify right side
    11,312.80x = 117,848,670.79
  5. Step 5: Solve for x
    x = 117,848,670.79/11,312.80
  6. Step 6: Final answer
    x = 10,417.29

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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.