Home / 15,187.08-20,967.66-11,643.48

Finding the Fourth Proportional to 15,187.08, 20,967.66 and 11,643.48

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Solution

The fourth proportional to 15,187.08, 20,967.66 and 11,643.48 is: 16,075.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,187.08 : 20,967.66 = 11,643.48 : x
  2. Step 2: Convert to fraction form
    15,187.08/20,967.66 = 11,643.48/x
  3. Step 3: Cross multiply
    15,187.08x = 20,967.66 × 11,643.48
  4. Step 4: Simplify right side
    15,187.08x = 244,136,529.86
  5. Step 5: Solve for x
    x = 244,136,529.86/15,187.08
  6. Step 6: Final answer
    x = 16,075.28

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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.