Home / 15,412.80-21,268.12-8,698.03

Finding the Fourth Proportional to 15,412.80, 21,268.12 and 8,698.03

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Solution

The fourth proportional to 15,412.80, 21,268.12 and 8,698.03 is: 12,002.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,412.80 : 21,268.12 = 8,698.03 : x
  2. Step 2: Convert to fraction form
    15,412.80/21,268.12 = 8,698.03/x
  3. Step 3: Cross multiply
    15,412.80x = 21,268.12 × 8,698.03
  4. Step 4: Simplify right side
    15,412.80x = 184,990,806.83
  5. Step 5: Solve for x
    x = 184,990,806.83/15,412.80
  6. Step 6: Final answer
    x = 12,002.41

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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.