Home / 15,362.09-21,199.70-8,647.77

Finding the Fourth Proportional to 15,362.09, 21,199.70 and 8,647.77

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Solution

The fourth proportional to 15,362.09, 21,199.70 and 8,647.77 is: 11,933.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,362.09 : 21,199.70 = 8,647.77 : x
  2. Step 2: Convert to fraction form
    15,362.09/21,199.70 = 8,647.77/x
  3. Step 3: Cross multiply
    15,362.09x = 21,199.70 × 8,647.77
  4. Step 4: Simplify right side
    15,362.09x = 183,330,146.84
  5. Step 5: Solve for x
    x = 183,330,146.84/15,362.09
  6. Step 6: Final answer
    x = 11,933.93

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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.