Home / 9,912.07-13,678.54-5,374.68

Finding the Fourth Proportional to 9,912.07, 13,678.54 and 5,374.68

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Solution

The fourth proportional to 9,912.07, 13,678.54 and 5,374.68 is: 7,417.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,912.07 : 13,678.54 = 5,374.68 : x
  2. Step 2: Convert to fraction form
    9,912.07/13,678.54 = 5,374.68/x
  3. Step 3: Cross multiply
    9,912.07x = 13,678.54 × 5,374.68
  4. Step 4: Simplify right side
    9,912.07x = 73,517,775.37
  5. Step 5: Solve for x
    x = 73,517,775.37/9,912.07
  6. Step 6: Final answer
    x = 7,417.00

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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.