Home / 13,904.16-19,187.55-7,616.58

Finding the Fourth Proportional to 13,904.16, 19,187.55 and 7,616.58

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Solution

The fourth proportional to 13,904.16, 19,187.55 and 7,616.58 is: 10,510.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.16 : 19,187.55 = 7,616.58 : x
  2. Step 2: Convert to fraction form
    13,904.16/19,187.55 = 7,616.58/x
  3. Step 3: Cross multiply
    13,904.16x = 19,187.55 × 7,616.58
  4. Step 4: Simplify right side
    13,904.16x = 146,143,509.58
  5. Step 5: Solve for x
    x = 146,143,509.58/13,904.16
  6. Step 6: Final answer
    x = 10,510.78

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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.