Home / 14,084.08-19,435.48-8,421.98

Finding the Fourth Proportional to 14,084.08, 19,435.48 and 8,421.98

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Solution

The fourth proportional to 14,084.08, 19,435.48 and 8,421.98 is: 11,622.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,084.08 : 19,435.48 = 8,421.98 : x
  2. Step 2: Convert to fraction form
    14,084.08/19,435.48 = 8,421.98/x
  3. Step 3: Cross multiply
    14,084.08x = 19,435.48 × 8,421.98
  4. Step 4: Simplify right side
    14,084.08x = 163,685,223.85
  5. Step 5: Solve for x
    x = 163,685,223.85/14,084.08
  6. Step 6: Final answer
    x = 11,622.00

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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.