Home / 12,848.80-17,734.34-8,364.78

Finding the Fourth Proportional to 12,848.80, 17,734.34 and 8,364.78

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Solution

The fourth proportional to 12,848.80, 17,734.34 and 8,364.78 is: 11,545.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,848.80 : 17,734.34 = 8,364.78 : x
  2. Step 2: Convert to fraction form
    12,848.80/17,734.34 = 8,364.78/x
  3. Step 3: Cross multiply
    12,848.80x = 17,734.34 × 8,364.78
  4. Step 4: Simplify right side
    12,848.80x = 148,343,852.55
  5. Step 5: Solve for x
    x = 148,343,852.55/12,848.80
  6. Step 6: Final answer
    x = 11,545.35

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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.