Home / 13,384.14-18,470.10-7,416.18

Finding the Fourth Proportional to 13,384.14, 18,470.10 and 7,416.18

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Solution

The fourth proportional to 13,384.14, 18,470.10 and 7,416.18 is: 10,234.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,384.14 : 18,470.10 = 7,416.18 : x
  2. Step 2: Convert to fraction form
    13,384.14/18,470.10 = 7,416.18/x
  3. Step 3: Cross multiply
    13,384.14x = 18,470.10 × 7,416.18
  4. Step 4: Simplify right side
    13,384.14x = 136,977,586.22
  5. Step 5: Solve for x
    x = 136,977,586.22/13,384.14
  6. Step 6: Final answer
    x = 10,234.32

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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.