Home / 13,535.91-18,679.19-7,567.20

Finding the Fourth Proportional to 13,535.91, 18,679.19 and 7,567.20

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Solution

The fourth proportional to 13,535.91, 18,679.19 and 7,567.20 is: 10,442.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,535.91 : 18,679.19 = 7,567.20 : x
  2. Step 2: Convert to fraction form
    13,535.91/18,679.19 = 7,567.20/x
  3. Step 3: Cross multiply
    13,535.91x = 18,679.19 × 7,567.20
  4. Step 4: Simplify right side
    13,535.91x = 141,349,128.73
  5. Step 5: Solve for x
    x = 141,349,128.73/13,535.91
  6. Step 6: Final answer
    x = 10,442.53

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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.