Home / 19,784.80-29,667.60-11,010.40

Finding the Fourth Proportional to 19,784.80, 29,667.60 and 11,010.40

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Solution

The fourth proportional to 19,784.80, 29,667.60 and 11,010.40 is: 16,510.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,784.80 : 29,667.60 = 11,010.40 : x
  2. Step 2: Convert to fraction form
    19,784.80/29,667.60 = 11,010.40/x
  3. Step 3: Cross multiply
    19,784.80x = 29,667.60 × 11,010.40
  4. Step 4: Simplify right side
    19,784.80x = 326,652,143.04
  5. Step 5: Solve for x
    x = 326,652,143.04/19,784.80
  6. Step 6: Final answer
    x = 16,510.26

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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.