Home / 13,356.99-18,433.76-7,390.53

Finding the Fourth Proportional to 13,356.99, 18,433.76 and 7,390.53

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Solution

The fourth proportional to 13,356.99, 18,433.76 and 7,390.53 is: 10,199.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,356.99 : 18,433.76 = 7,390.53 : x
  2. Step 2: Convert to fraction form
    13,356.99/18,433.76 = 7,390.53/x
  3. Step 3: Cross multiply
    13,356.99x = 18,433.76 × 7,390.53
  4. Step 4: Simplify right side
    13,356.99x = 136,235,219.34
  5. Step 5: Solve for x
    x = 136,235,219.34/13,356.99
  6. Step 6: Final answer
    x = 10,199.54

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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.