Home / 12,359.79-17,055.36-7,054.56

Finding the Fourth Proportional to 12,359.79, 17,055.36 and 7,054.56

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Solution

The fourth proportional to 12,359.79, 17,055.36 and 7,054.56 is: 9,734.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,359.79 : 17,055.36 = 7,054.56 : x
  2. Step 2: Convert to fraction form
    12,359.79/17,055.36 = 7,054.56/x
  3. Step 3: Cross multiply
    12,359.79x = 17,055.36 × 7,054.56
  4. Step 4: Simplify right side
    12,359.79x = 120,318,060.44
  5. Step 5: Solve for x
    x = 120,318,060.44/12,359.79
  6. Step 6: Final answer
    x = 9,734.64

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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.