Home / 12,384.18-17,113.53-9,394.67

Finding the Fourth Proportional to 12,384.18, 17,113.53 and 9,394.67

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Solution

The fourth proportional to 12,384.18, 17,113.53 and 9,394.67 is: 12,982.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,384.18 : 17,113.53 = 9,394.67 : x
  2. Step 2: Convert to fraction form
    12,384.18/17,113.53 = 9,394.67/x
  3. Step 3: Cross multiply
    12,384.18x = 17,113.53 × 9,394.67
  4. Step 4: Simplify right side
    12,384.18x = 160,775,881.32
  5. Step 5: Solve for x
    x = 160,775,881.32/12,384.18
  6. Step 6: Final answer
    x = 12,982.36

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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.