Home / 13,954.46-20,931.70-8,763.98

Finding the Fourth Proportional to 13,954.46, 20,931.70 and 8,763.98

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Solution

The fourth proportional to 13,954.46, 20,931.70 and 8,763.98 is: 13,145.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,954.46 : 20,931.70 = 8,763.98 : x
  2. Step 2: Convert to fraction form
    13,954.46/20,931.70 = 8,763.98/x
  3. Step 3: Cross multiply
    13,954.46x = 20,931.70 × 8,763.98
  4. Step 4: Simplify right side
    13,954.46x = 183,445,000.17
  5. Step 5: Solve for x
    x = 183,445,000.17/13,954.46
  6. Step 6: Final answer
    x = 13,145.98

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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.