Home / 15,630.36-21,569.96-8,557.44

Finding the Fourth Proportional to 15,630.36, 21,569.96 and 8,557.44

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Solution

The fourth proportional to 15,630.36, 21,569.96 and 8,557.44 is: 11,809.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,630.36 : 21,569.96 = 8,557.44 : x
  2. Step 2: Convert to fraction form
    15,630.36/21,569.96 = 8,557.44/x
  3. Step 3: Cross multiply
    15,630.36x = 21,569.96 × 8,557.44
  4. Step 4: Simplify right side
    15,630.36x = 184,583,595.72
  5. Step 5: Solve for x
    x = 184,583,595.72/15,630.36
  6. Step 6: Final answer
    x = 11,809.30

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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.