Home / 13,904.51-19,188.50-7,616.88

Finding the Fourth Proportional to 13,904.51, 19,188.50 and 7,616.88

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Solution

The fourth proportional to 13,904.51, 19,188.50 and 7,616.88 is: 10,511.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,904.51 : 19,188.50 = 7,616.88 : x
  2. Step 2: Convert to fraction form
    13,904.51/19,188.50 = 7,616.88/x
  3. Step 3: Cross multiply
    13,904.51x = 19,188.50 × 7,616.88
  4. Step 4: Simplify right side
    13,904.51x = 146,156,463.80
  5. Step 5: Solve for x
    x = 146,156,463.80/13,904.51
  6. Step 6: Final answer
    x = 10,511.45

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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.