Home / 18,877.12-26,038.84-13,579.04

Finding the Fourth Proportional to 18,877.12, 26,038.84 and 13,579.04

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Solution

The fourth proportional to 18,877.12, 26,038.84 and 13,579.04 is: 18,730.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,877.12 : 26,038.84 = 13,579.04 : x
  2. Step 2: Convert to fraction form
    18,877.12/26,038.84 = 13,579.04/x
  3. Step 3: Cross multiply
    18,877.12x = 26,038.84 × 13,579.04
  4. Step 4: Simplify right side
    18,877.12x = 353,582,449.91
  5. Step 5: Solve for x
    x = 353,582,449.91/18,877.12
  6. Step 6: Final answer
    x = 18,730.74

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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.