Home / 13,307.11-18,363.45-7,338.67

Finding the Fourth Proportional to 13,307.11, 18,363.45 and 7,338.67

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Solution

The fourth proportional to 13,307.11, 18,363.45 and 7,338.67 is: 10,127.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,307.11 : 18,363.45 = 7,338.67 : x
  2. Step 2: Convert to fraction form
    13,307.11/18,363.45 = 7,338.67/x
  3. Step 3: Cross multiply
    13,307.11x = 18,363.45 × 7,338.67
  4. Step 4: Simplify right side
    13,307.11x = 134,763,299.61
  5. Step 5: Solve for x
    x = 134,763,299.61/13,307.11
  6. Step 6: Final answer
    x = 10,127.17

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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.