Home / 15,388.96-23,075.74-7,991.37

Finding the Fourth Proportional to 15,388.96, 23,075.74 and 7,991.37

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Solution

The fourth proportional to 15,388.96, 23,075.74 and 7,991.37 is: 11,983.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.96 : 23,075.74 = 7,991.37 : x
  2. Step 2: Convert to fraction form
    15,388.96/23,075.74 = 7,991.37/x
  3. Step 3: Cross multiply
    15,388.96x = 23,075.74 × 7,991.37
  4. Step 4: Simplify right side
    15,388.96x = 184,406,776.36
  5. Step 5: Solve for x
    x = 184,406,776.36/15,388.96
  6. Step 6: Final answer
    x = 11,983.06

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.