Home / 15,441.80-21,309.69-8,368.19

Finding the Fourth Proportional to 15,441.80, 21,309.69 and 8,368.19

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Solution

The fourth proportional to 15,441.80, 21,309.69 and 8,368.19 is: 11,548.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,441.80 : 21,309.69 = 8,368.19 : x
  2. Step 2: Convert to fraction form
    15,441.80/21,309.69 = 8,368.19/x
  3. Step 3: Cross multiply
    15,441.80x = 21,309.69 × 8,368.19
  4. Step 4: Simplify right side
    15,441.80x = 178,323,534.76
  5. Step 5: Solve for x
    x = 178,323,534.76/15,441.80
  6. Step 6: Final answer
    x = 11,548.11

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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.