Home / 14,123.13-19,489.86-8,155.35

Finding the Fourth Proportional to 14,123.13, 19,489.86 and 8,155.35

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Solution

The fourth proportional to 14,123.13, 19,489.86 and 8,155.35 is: 11,254.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,123.13 : 19,489.86 = 8,155.35 : x
  2. Step 2: Convert to fraction form
    14,123.13/19,489.86 = 8,155.35/x
  3. Step 3: Cross multiply
    14,123.13x = 19,489.86 × 8,155.35
  4. Step 4: Simplify right side
    14,123.13x = 158,946,629.75
  5. Step 5: Solve for x
    x = 158,946,629.75/14,123.13
  6. Step 6: Final answer
    x = 11,254.35

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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.