Home / 15,388.74-23,075.34-7,991.10

Finding the Fourth Proportional to 15,388.74, 23,075.34 and 7,991.10

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Solution

The fourth proportional to 15,388.74, 23,075.34 and 7,991.10 is: 11,982.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,388.74 : 23,075.34 = 7,991.10 : x
  2. Step 2: Convert to fraction form
    15,388.74/23,075.34 = 7,991.10/x
  3. Step 3: Cross multiply
    15,388.74x = 23,075.34 × 7,991.10
  4. Step 4: Simplify right side
    15,388.74x = 184,397,349.47
  5. Step 5: Solve for x
    x = 184,397,349.47/15,388.74
  6. Step 6: Final answer
    x = 11,982.62

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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.