Home / 13,858.60-19,124.86-7,485.19

Finding the Fourth Proportional to 13,858.60, 19,124.86 and 7,485.19

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Solution

The fourth proportional to 13,858.60, 19,124.86 and 7,485.19 is: 10,329.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.60 : 19,124.86 = 7,485.19 : x
  2. Step 2: Convert to fraction form
    13,858.60/19,124.86 = 7,485.19/x
  3. Step 3: Cross multiply
    13,858.60x = 19,124.86 × 7,485.19
  4. Step 4: Simplify right side
    13,858.60x = 143,153,144.30
  5. Step 5: Solve for x
    x = 143,153,144.30/13,858.60
  6. Step 6: Final answer
    x = 10,329.55

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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.