Home / 12,763.60-19,145.40-12,677.20

Finding the Fourth Proportional to 12,763.60, 19,145.40 and 12,677.20

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Solution

The fourth proportional to 12,763.60, 19,145.40 and 12,677.20 is: 19,015.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,763.60 : 19,145.40 = 12,677.20 : x
  2. Step 2: Convert to fraction form
    12,763.60/19,145.40 = 12,677.20/x
  3. Step 3: Cross multiply
    12,763.60x = 19,145.40 × 12,677.20
  4. Step 4: Simplify right side
    12,763.60x = 242,710,064.88
  5. Step 5: Solve for x
    x = 242,710,064.88/12,763.60
  6. Step 6: Final answer
    x = 19,015.80

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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.