Home / 13,541.26-18,686.89-7,572.91

Finding the Fourth Proportional to 13,541.26, 18,686.89 and 7,572.91

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Solution

The fourth proportional to 13,541.26, 18,686.89 and 7,572.91 is: 10,450.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,541.26 : 18,686.89 = 7,572.91 : x
  2. Step 2: Convert to fraction form
    13,541.26/18,686.89 = 7,572.91/x
  3. Step 3: Cross multiply
    13,541.26x = 18,686.89 × 7,572.91
  4. Step 4: Simplify right side
    13,541.26x = 141,514,136.15
  5. Step 5: Solve for x
    x = 141,514,136.15/13,541.26
  6. Step 6: Final answer
    x = 10,450.59

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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.