Home / 13,865.53-19,134.15-7,577.95

Finding the Fourth Proportional to 13,865.53, 19,134.15 and 7,577.95

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Solution

The fourth proportional to 13,865.53, 19,134.15 and 7,577.95 is: 10,457.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,865.53 : 19,134.15 = 7,577.95 : x
  2. Step 2: Convert to fraction form
    13,865.53/19,134.15 = 7,577.95/x
  3. Step 3: Cross multiply
    13,865.53x = 19,134.15 × 7,577.95
  4. Step 4: Simplify right side
    13,865.53x = 144,997,631.99
  5. Step 5: Solve for x
    x = 144,997,631.99/13,865.53
  6. Step 6: Final answer
    x = 10,457.42

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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.