Home / 13,558.53-18,710.86-7,896.58

Finding the Fourth Proportional to 13,558.53, 18,710.86 and 7,896.58

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Solution

The fourth proportional to 13,558.53, 18,710.86 and 7,896.58 is: 10,897.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,558.53 : 18,710.86 = 7,896.58 : x
  2. Step 2: Convert to fraction form
    13,558.53/18,710.86 = 7,896.58/x
  3. Step 3: Cross multiply
    13,558.53x = 18,710.86 × 7,896.58
  4. Step 4: Simplify right side
    13,558.53x = 147,751,802.86
  5. Step 5: Solve for x
    x = 147,751,802.86/13,558.53
  6. Step 6: Final answer
    x = 10,897.33

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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.