Home / 18,758.25-25,886.40-10,374.75

Finding the Fourth Proportional to 18,758.25, 25,886.40 and 10,374.75

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Solution

The fourth proportional to 18,758.25, 25,886.40 and 10,374.75 is: 14,317.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,758.25 : 25,886.40 = 10,374.75 : x
  2. Step 2: Convert to fraction form
    18,758.25/25,886.40 = 10,374.75/x
  3. Step 3: Cross multiply
    18,758.25x = 25,886.40 × 10,374.75
  4. Step 4: Simplify right side
    18,758.25x = 268,564,928.40
  5. Step 5: Solve for x
    x = 268,564,928.40/18,758.25
  6. Step 6: Final answer
    x = 14,317.16

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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.