Home / 15,569.35-21,485.32-8,495.79

Finding the Fourth Proportional to 15,569.35, 21,485.32 and 8,495.79

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Solution

The fourth proportional to 15,569.35, 21,485.32 and 8,495.79 is: 11,723.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,569.35 : 21,485.32 = 8,495.79 : x
  2. Step 2: Convert to fraction form
    15,569.35/21,485.32 = 8,495.79/x
  3. Step 3: Cross multiply
    15,569.35x = 21,485.32 × 8,495.79
  4. Step 4: Simplify right side
    15,569.35x = 182,534,664.99
  5. Step 5: Solve for x
    x = 182,534,664.99/15,569.35
  6. Step 6: Final answer
    x = 11,723.98

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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.