Home / 13,054.77-18,015.60-7,086.44

Finding the Fourth Proportional to 13,054.77, 18,015.60 and 7,086.44

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Solution

The fourth proportional to 13,054.77, 18,015.60 and 7,086.44 is: 9,779.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,054.77 : 18,015.60 = 7,086.44 : x
  2. Step 2: Convert to fraction form
    13,054.77/18,015.60 = 7,086.44/x
  3. Step 3: Cross multiply
    13,054.77x = 18,015.60 × 7,086.44
  4. Step 4: Simplify right side
    13,054.77x = 127,666,468.46
  5. Step 5: Solve for x
    x = 127,666,468.46/13,054.77
  6. Step 6: Final answer
    x = 9,779.30

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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.