Home / 13,864.07-19,130.21-7,895.85

Finding the Fourth Proportional to 13,864.07, 19,130.21 and 7,895.85

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Solution

The fourth proportional to 13,864.07, 19,130.21 and 7,895.85 is: 10,895.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,864.07 : 19,130.21 = 7,895.85 : x
  2. Step 2: Convert to fraction form
    13,864.07/19,130.21 = 7,895.85/x
  3. Step 3: Cross multiply
    13,864.07x = 19,130.21 × 7,895.85
  4. Step 4: Simplify right side
    13,864.07x = 151,049,229.15
  5. Step 5: Solve for x
    x = 151,049,229.15/13,864.07
  6. Step 6: Final answer
    x = 10,895.01

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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.