Home / 16,940.80-25,427.40-8,630.20

Finding the Fourth Proportional to 16,940.80, 25,427.40 and 8,630.20

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Solution

The fourth proportional to 16,940.80, 25,427.40 and 8,630.20 is: 12,953.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,940.80 : 25,427.40 = 8,630.20 : x
  2. Step 2: Convert to fraction form
    16,940.80/25,427.40 = 8,630.20/x
  3. Step 3: Cross multiply
    16,940.80x = 25,427.40 × 8,630.20
  4. Step 4: Simplify right side
    16,940.80x = 219,443,547.48
  5. Step 5: Solve for x
    x = 219,443,547.48/16,940.80
  6. Step 6: Final answer
    x = 12,953.55

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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.