Home / 13,877.76-19,150.28-8,572.68

Finding the Fourth Proportional to 13,877.76, 19,150.28 and 8,572.68

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Solution

The fourth proportional to 13,877.76, 19,150.28 and 8,572.68 is: 11,829.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,877.76 : 19,150.28 = 8,572.68 : x
  2. Step 2: Convert to fraction form
    13,877.76/19,150.28 = 8,572.68/x
  3. Step 3: Cross multiply
    13,877.76x = 19,150.28 × 8,572.68
  4. Step 4: Simplify right side
    13,877.76x = 164,169,222.35
  5. Step 5: Solve for x
    x = 164,169,222.35/13,877.76
  6. Step 6: Final answer
    x = 11,829.66

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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.