Home / 13,384.60-18,470.19-7,416.52

Finding the Fourth Proportional to 13,384.60, 18,470.19 and 7,416.52

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Solution

The fourth proportional to 13,384.60, 18,470.19 and 7,416.52 is: 10,234.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.60 : 18,470.19 = 7,416.52 : x
  2. Step 2: Convert to fraction form
    13,384.60/18,470.19 = 7,416.52/x
  3. Step 3: Cross multiply
    13,384.60x = 18,470.19 × 7,416.52
  4. Step 4: Simplify right side
    13,384.60x = 136,984,533.54
  5. Step 5: Solve for x
    x = 136,984,533.54/13,384.60
  6. Step 6: Final answer
    x = 10,234.49

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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.