Home / 13,920.94-19,210.90-7,633.45

Finding the Fourth Proportional to 13,920.94, 19,210.90 and 7,633.45

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Solution

The fourth proportional to 13,920.94, 19,210.90 and 7,633.45 is: 10,534.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.94 : 19,210.90 = 7,633.45 : x
  2. Step 2: Convert to fraction form
    13,920.94/19,210.90 = 7,633.45/x
  3. Step 3: Cross multiply
    13,920.94x = 19,210.90 × 7,633.45
  4. Step 4: Simplify right side
    13,920.94x = 146,645,377.49
  5. Step 5: Solve for x
    x = 146,645,377.49/13,920.94
  6. Step 6: Final answer
    x = 10,534.16

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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.