Home / 18,746.78-25,870.57-10,790.55

Finding the Fourth Proportional to 18,746.78, 25,870.57 and 10,790.55

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Solution

The fourth proportional to 18,746.78, 25,870.57 and 10,790.55 is: 14,890.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,746.78 : 25,870.57 = 10,790.55 : x
  2. Step 2: Convert to fraction form
    18,746.78/25,870.57 = 10,790.55/x
  3. Step 3: Cross multiply
    18,746.78x = 25,870.57 × 10,790.55
  4. Step 4: Simplify right side
    18,746.78x = 279,157,652.14
  5. Step 5: Solve for x
    x = 279,157,652.14/18,746.78
  6. Step 6: Final answer
    x = 14,890.97

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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.