Home / 9,929.73-13,698.54-7,943.07

Finding the Fourth Proportional to 9,929.73, 13,698.54 and 7,943.07

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Solution

The fourth proportional to 9,929.73, 13,698.54 and 7,943.07 is: 10,957.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,929.73 : 13,698.54 = 7,943.07 : x
  2. Step 2: Convert to fraction form
    9,929.73/13,698.54 = 7,943.07/x
  3. Step 3: Cross multiply
    9,929.73x = 13,698.54 × 7,943.07
  4. Step 4: Simplify right side
    9,929.73x = 108,808,462.12
  5. Step 5: Solve for x
    x = 108,808,462.12/9,929.73
  6. Step 6: Final answer
    x = 10,957.85

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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.