Home / 14,017.30-19,343.80-7,729.67

Finding the Fourth Proportional to 14,017.30, 19,343.80 and 7,729.67

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Solution

The fourth proportional to 14,017.30, 19,343.80 and 7,729.67 is: 10,666.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,017.30 : 19,343.80 = 7,729.67 : x
  2. Step 2: Convert to fraction form
    14,017.30/19,343.80 = 7,729.67/x
  3. Step 3: Cross multiply
    14,017.30x = 19,343.80 × 7,729.67
  4. Step 4: Simplify right side
    14,017.30x = 149,521,190.55
  5. Step 5: Solve for x
    x = 149,521,190.55/14,017.30
  6. Step 6: Final answer
    x = 10,666.90

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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.