Home / 14,258.40-19,671.57-8,288.70

Finding the Fourth Proportional to 14,258.40, 19,671.57 and 8,288.70

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Solution

The fourth proportional to 14,258.40, 19,671.57 and 8,288.70 is: 11,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,258.40 : 19,671.57 = 8,288.70 : x
  2. Step 2: Convert to fraction form
    14,258.40/19,671.57 = 8,288.70/x
  3. Step 3: Cross multiply
    14,258.40x = 19,671.57 × 8,288.70
  4. Step 4: Simplify right side
    14,258.40x = 163,051,742.26
  5. Step 5: Solve for x
    x = 163,051,742.26/14,258.40
  6. Step 6: Final answer
    x = 11,435.49

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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.