Home / 13,472.19-18,586.35-8,434.26

Finding the Fourth Proportional to 13,472.19, 18,586.35 and 8,434.26

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Solution

The fourth proportional to 13,472.19, 18,586.35 and 8,434.26 is: 11,635.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,472.19 : 18,586.35 = 8,434.26 : x
  2. Step 2: Convert to fraction form
    13,472.19/18,586.35 = 8,434.26/x
  3. Step 3: Cross multiply
    13,472.19x = 18,586.35 × 8,434.26
  4. Step 4: Simplify right side
    13,472.19x = 156,762,108.35
  5. Step 5: Solve for x
    x = 156,762,108.35/13,472.19
  6. Step 6: Final answer
    x = 11,635.98

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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.