Home / 13,858.48-19,124.70-7,485.08

Finding the Fourth Proportional to 13,858.48, 19,124.70 and 7,485.08

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Solution

The fourth proportional to 13,858.48, 19,124.70 and 7,485.08 is: 10,329.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,858.48 : 19,124.70 = 7,485.08 : x
  2. Step 2: Convert to fraction form
    13,858.48/19,124.70 = 7,485.08/x
  3. Step 3: Cross multiply
    13,858.48x = 19,124.70 × 7,485.08
  4. Step 4: Simplify right side
    13,858.48x = 143,149,909.48
  5. Step 5: Solve for x
    x = 143,149,909.48/13,858.48
  6. Step 6: Final answer
    x = 10,329.41

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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.