Home / 14,146.20-19,521.18-7,858.98

Finding the Fourth Proportional to 14,146.20, 19,521.18 and 7,858.98

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Solution

The fourth proportional to 14,146.20, 19,521.18 and 7,858.98 is: 10,845.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,146.20 : 19,521.18 = 7,858.98 : x
  2. Step 2: Convert to fraction form
    14,146.20/19,521.18 = 7,858.98/x
  3. Step 3: Cross multiply
    14,146.20x = 19,521.18 × 7,858.98
  4. Step 4: Simplify right side
    14,146.20x = 153,416,563.20
  5. Step 5: Solve for x
    x = 153,416,563.20/14,146.20
  6. Step 6: Final answer
    x = 10,845.07

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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.