Home / 14,177.74-19,531.44-9,920.86

Finding the Fourth Proportional to 14,177.74, 19,531.44 and 9,920.86

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Solution

The fourth proportional to 14,177.74, 19,531.44 and 9,920.86 is: 13,667.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,177.74 : 19,531.44 = 9,920.86 : x
  2. Step 2: Convert to fraction form
    14,177.74/19,531.44 = 9,920.86/x
  3. Step 3: Cross multiply
    14,177.74x = 19,531.44 × 9,920.86
  4. Step 4: Simplify right side
    14,177.74x = 193,768,681.84
  5. Step 5: Solve for x
    x = 193,768,681.84/14,177.74
  6. Step 6: Final answer
    x = 13,667.11

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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.