Home / 14,290.12-19,715.43-8,985.34

Finding the Fourth Proportional to 14,290.12, 19,715.43 and 8,985.34

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Solution

The fourth proportional to 14,290.12, 19,715.43 and 8,985.34 is: 12,396.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,290.12 : 19,715.43 = 8,985.34 : x
  2. Step 2: Convert to fraction form
    14,290.12/19,715.43 = 8,985.34/x
  3. Step 3: Cross multiply
    14,290.12x = 19,715.43 × 8,985.34
  4. Step 4: Simplify right side
    14,290.12x = 177,149,841.80
  5. Step 5: Solve for x
    x = 177,149,841.80/14,290.12
  6. Step 6: Final answer
    x = 12,396.67

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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.