Home / 13,362.84-18,440.46-7,394.40

Finding the Fourth Proportional to 13,362.84, 18,440.46 and 7,394.40

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Solution

The fourth proportional to 13,362.84, 18,440.46 and 7,394.40 is: 10,204.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,362.84 : 18,440.46 = 7,394.40 : x
  2. Step 2: Convert to fraction form
    13,362.84/18,440.46 = 7,394.40/x
  3. Step 3: Cross multiply
    13,362.84x = 18,440.46 × 7,394.40
  4. Step 4: Simplify right side
    13,362.84x = 136,356,137.42
  5. Step 5: Solve for x
    x = 136,356,137.42/13,362.84
  6. Step 6: Final answer
    x = 10,204.13

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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.