Home / 11,535.42-15,913.35-7,554.78

Finding the Fourth Proportional to 11,535.42, 15,913.35 and 7,554.78

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Solution

The fourth proportional to 11,535.42, 15,913.35 and 7,554.78 is: 10,421.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,535.42 : 15,913.35 = 7,554.78 : x
  2. Step 2: Convert to fraction form
    11,535.42/15,913.35 = 7,554.78/x
  3. Step 3: Cross multiply
    11,535.42x = 15,913.35 × 7,554.78
  4. Step 4: Simplify right side
    11,535.42x = 120,221,858.31
  5. Step 5: Solve for x
    x = 120,221,858.31/11,535.42
  6. Step 6: Final answer
    x = 10,421.97

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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.