Home / 11,111.59-16,667.39-4,870.19

Finding the Fourth Proportional to 11,111.59, 16,667.39 and 4,870.19

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Solution

The fourth proportional to 11,111.59, 16,667.39 and 4,870.19 is: 7,305.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,111.59 : 16,667.39 = 4,870.19 : x
  2. Step 2: Convert to fraction form
    11,111.59/16,667.39 = 4,870.19/x
  3. Step 3: Cross multiply
    11,111.59x = 16,667.39 × 4,870.19
  4. Step 4: Simplify right side
    11,111.59x = 81,173,409.95
  5. Step 5: Solve for x
    x = 81,173,409.95/11,111.59
  6. Step 6: Final answer
    x = 7,305.29

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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.