Home / 13,858.74-20,782.58-5,088.87

Finding the Fourth Proportional to 13,858.74, 20,782.58 and 5,088.87

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Solution

The fourth proportional to 13,858.74, 20,782.58 and 5,088.87 is: 7,631.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.74 : 20,782.58 = 5,088.87 : x
  2. Step 2: Convert to fraction form
    13,858.74/20,782.58 = 5,088.87/x
  3. Step 3: Cross multiply
    13,858.74x = 20,782.58 × 5,088.87
  4. Step 4: Simplify right side
    13,858.74x = 105,759,822.44
  5. Step 5: Solve for x
    x = 105,759,822.44/13,858.74
  6. Step 6: Final answer
    x = 7,631.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.