Home / 10,450.40-15,675.60-8,117.60

Finding the Fourth Proportional to 10,450.40, 15,675.60 and 8,117.60

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Solution

The fourth proportional to 10,450.40, 15,675.60 and 8,117.60 is: 12,176.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,450.40 : 15,675.60 = 8,117.60 : x
  2. Step 2: Convert to fraction form
    10,450.40/15,675.60 = 8,117.60/x
  3. Step 3: Cross multiply
    10,450.40x = 15,675.60 × 8,117.60
  4. Step 4: Simplify right side
    10,450.40x = 127,248,250.56
  5. Step 5: Solve for x
    x = 127,248,250.56/10,450.40
  6. Step 6: Final answer
    x = 12,176.40

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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.