Home / 13,363.48-18,440.84-7,394.80

Finding the Fourth Proportional to 13,363.48, 18,440.84 and 7,394.80

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Solution

The fourth proportional to 13,363.48, 18,440.84 and 7,394.80 is: 10,204.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,363.48 : 18,440.84 = 7,394.80 : x
  2. Step 2: Convert to fraction form
    13,363.48/18,440.84 = 7,394.80/x
  3. Step 3: Cross multiply
    13,363.48x = 18,440.84 × 7,394.80
  4. Step 4: Simplify right side
    13,363.48x = 136,366,323.63
  5. Step 5: Solve for x
    x = 136,366,323.63/13,363.48
  6. Step 6: Final answer
    x = 10,204.40

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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.