Home / 13,586.15-18,740.26-9,814.86

Finding the Fourth Proportional to 13,586.15, 18,740.26 and 9,814.86

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Solution

The fourth proportional to 13,586.15, 18,740.26 and 9,814.86 is: 13,538.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,586.15 : 18,740.26 = 9,814.86 : x
  2. Step 2: Convert to fraction form
    13,586.15/18,740.26 = 9,814.86/x
  3. Step 3: Cross multiply
    13,586.15x = 18,740.26 × 9,814.86
  4. Step 4: Simplify right side
    13,586.15x = 183,933,040.53
  5. Step 5: Solve for x
    x = 183,933,040.53/13,586.15
  6. Step 6: Final answer
    x = 13,538.27

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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.