Home / 11,111.34-16,667.04-3,320.16

Finding the Fourth Proportional to 11,111.34, 16,667.04 and 3,320.16

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Solution

The fourth proportional to 11,111.34, 16,667.04 and 3,320.16 is: 4,980.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.34 : 16,667.04 = 3,320.16 : x
  2. Step 2: Convert to fraction form
    11,111.34/16,667.04 = 3,320.16/x
  3. Step 3: Cross multiply
    11,111.34x = 16,667.04 × 3,320.16
  4. Step 4: Simplify right side
    11,111.34x = 55,337,239.53
  5. Step 5: Solve for x
    x = 55,337,239.53/11,111.34
  6. Step 6: Final answer
    x = 4,980.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.