Home / 13,054.92-18,015.80-7,086.59

Finding the Fourth Proportional to 13,054.92, 18,015.80 and 7,086.59

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Solution

The fourth proportional to 13,054.92, 18,015.80 and 7,086.59 is: 9,779.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.92 : 18,015.80 = 7,086.59 : x
  2. Step 2: Convert to fraction form
    13,054.92/18,015.80 = 7,086.59/x
  3. Step 3: Cross multiply
    13,054.92x = 18,015.80 × 7,086.59
  4. Step 4: Simplify right side
    13,054.92x = 127,670,462.61
  5. Step 5: Solve for x
    x = 127,670,462.61/13,054.92
  6. Step 6: Final answer
    x = 9,779.49

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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.