Home / 13,535.85-18,678.96-7,567.23

Finding the Fourth Proportional to 13,535.85, 18,678.96 and 7,567.23

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Solution

The fourth proportional to 13,535.85, 18,678.96 and 7,567.23 is: 10,442.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.85 : 18,678.96 = 7,567.23 : x
  2. Step 2: Convert to fraction form
    13,535.85/18,678.96 = 7,567.23/x
  3. Step 3: Cross multiply
    13,535.85x = 18,678.96 × 7,567.23
  4. Step 4: Simplify right side
    13,535.85x = 141,347,986.48
  5. Step 5: Solve for x
    x = 141,347,986.48/13,535.85
  6. Step 6: Final answer
    x = 10,442.49

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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.