Home / 12,788.37-19,162.65-4,886.57

Finding the Fourth Proportional to 12,788.37, 19,162.65 and 4,886.57

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Solution

The fourth proportional to 12,788.37, 19,162.65 and 4,886.57 is: 7,322.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,788.37 : 19,162.65 = 4,886.57 : x
  2. Step 2: Convert to fraction form
    12,788.37/19,162.65 = 4,886.57/x
  3. Step 3: Cross multiply
    12,788.37x = 19,162.65 × 4,886.57
  4. Step 4: Simplify right side
    12,788.37x = 93,639,630.61
  5. Step 5: Solve for x
    x = 93,639,630.61/12,788.37
  6. Step 6: Final answer
    x = 7,322.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.