Home / 13,409.73-18,506.58-7,442.56

Finding the Fourth Proportional to 13,409.73, 18,506.58 and 7,442.56

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Solution

The fourth proportional to 13,409.73, 18,506.58 and 7,442.56 is: 10,271.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,409.73 : 18,506.58 = 7,442.56 : x
  2. Step 2: Convert to fraction form
    13,409.73/18,506.58 = 7,442.56/x
  3. Step 3: Cross multiply
    13,409.73x = 18,506.58 × 7,442.56
  4. Step 4: Simplify right side
    13,409.73x = 137,736,332.04
  5. Step 5: Solve for x
    x = 137,736,332.04/13,409.73
  6. Step 6: Final answer
    x = 10,271.37

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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.