Home / 13,865.48-19,134.33-7,577.90

Finding the Fourth Proportional to 13,865.48, 19,134.33 and 7,577.90

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Solution

The fourth proportional to 13,865.48, 19,134.33 and 7,577.90 is: 10,457.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.48 : 19,134.33 = 7,577.90 : x
  2. Step 2: Convert to fraction form
    13,865.48/19,134.33 = 7,577.90/x
  3. Step 3: Cross multiply
    13,865.48x = 19,134.33 × 7,577.90
  4. Step 4: Simplify right side
    13,865.48x = 144,998,039.31
  5. Step 5: Solve for x
    x = 144,998,039.31/13,865.48
  6. Step 6: Final answer
    x = 10,457.48

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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.