Home / 13,865.57-19,134.41-7,577.94

Finding the Fourth Proportional to 13,865.57, 19,134.41 and 7,577.94

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Solution

The fourth proportional to 13,865.57, 19,134.41 and 7,577.94 is: 10,457.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.57 : 19,134.41 = 7,577.94 : x
  2. Step 2: Convert to fraction form
    13,865.57/19,134.41 = 7,577.94/x
  3. Step 3: Cross multiply
    13,865.57x = 19,134.41 × 7,577.94
  4. Step 4: Simplify right side
    13,865.57x = 144,999,373.03
  5. Step 5: Solve for x
    x = 144,999,373.03/13,865.57
  6. Step 6: Final answer
    x = 10,457.52

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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.