Home / 18,827.88-25,979.04-10,867.20

Finding the Fourth Proportional to 18,827.88, 25,979.04 and 10,867.20

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Solution

The fourth proportional to 18,827.88, 25,979.04 and 10,867.20 is: 14,994.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,827.88 : 25,979.04 = 10,867.20 : x
  2. Step 2: Convert to fraction form
    18,827.88/25,979.04 = 10,867.20/x
  3. Step 3: Cross multiply
    18,827.88x = 25,979.04 × 10,867.20
  4. Step 4: Simplify right side
    18,827.88x = 282,319,423.49
  5. Step 5: Solve for x
    x = 282,319,423.49/18,827.88
  6. Step 6: Final answer
    x = 14,994.75

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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.