Home / 13,878.64-19,155-8,844.88

Finding the Fourth Proportional to 13,878.64, 19,155 and 8,844.88

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Solution

The fourth proportional to 13,878.64, 19,155 and 8,844.88 is: 12,207.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,878.64 : 19,155 = 8,844.88 : x
  2. Step 2: Convert to fraction form
    13,878.64/19,155 = 8,844.88/x
  3. Step 3: Cross multiply
    13,878.64x = 19,155 × 8,844.88
  4. Step 4: Simplify right side
    13,878.64x = 169,423,676.40
  5. Step 5: Solve for x
    x = 169,423,676.40/13,878.64
  6. Step 6: Final answer
    x = 12,207.51

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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.