Home / 13,384.45-18,471.68-7,417.99

Finding the Fourth Proportional to 13,384.45, 18,471.68 and 7,417.99

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Solution

The fourth proportional to 13,384.45, 18,471.68 and 7,417.99 is: 10,237.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.45 : 18,471.68 = 7,417.99 : x
  2. Step 2: Convert to fraction form
    13,384.45/18,471.68 = 7,417.99/x
  3. Step 3: Cross multiply
    13,384.45x = 18,471.68 × 7,417.99
  4. Step 4: Simplify right side
    13,384.45x = 137,022,737.52
  5. Step 5: Solve for x
    x = 137,022,737.52/13,384.45
  6. Step 6: Final answer
    x = 10,237.46

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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.