Home / 13,920.52-19,210.50-7,632.76

Finding the Fourth Proportional to 13,920.52, 19,210.50 and 7,632.76

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Solution

The fourth proportional to 13,920.52, 19,210.50 and 7,632.76 is: 10,533.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,920.52 : 19,210.50 = 7,632.76 : x
  2. Step 2: Convert to fraction form
    13,920.52/19,210.50 = 7,632.76/x
  3. Step 3: Cross multiply
    13,920.52x = 19,210.50 × 7,632.76
  4. Step 4: Simplify right side
    13,920.52x = 146,629,135.98
  5. Step 5: Solve for x
    x = 146,629,135.98/13,920.52
  6. Step 6: Final answer
    x = 10,533.31

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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.