Home / 15,640.08-21,583.44-8,567.16

Finding the Fourth Proportional to 15,640.08, 21,583.44 and 8,567.16

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Solution

The fourth proportional to 15,640.08, 21,583.44 and 8,567.16 is: 11,822.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,640.08 : 21,583.44 = 8,567.16 : x
  2. Step 2: Convert to fraction form
    15,640.08/21,583.44 = 8,567.16/x
  3. Step 3: Cross multiply
    15,640.08x = 21,583.44 × 8,567.16
  4. Step 4: Simplify right side
    15,640.08x = 184,908,783.83
  5. Step 5: Solve for x
    x = 184,908,783.83/15,640.08
  6. Step 6: Final answer
    x = 11,822.75

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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.