Home / 13,830.04-19,084.98-7,861.96

Finding the Fourth Proportional to 13,830.04, 19,084.98 and 7,861.96

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Solution

The fourth proportional to 13,830.04, 19,084.98 and 7,861.96 is: 10,849.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,830.04 : 19,084.98 = 7,861.96 : x
  2. Step 2: Convert to fraction form
    13,830.04/19,084.98 = 7,861.96/x
  3. Step 3: Cross multiply
    13,830.04x = 19,084.98 × 7,861.96
  4. Step 4: Simplify right side
    13,830.04x = 150,045,349.36
  5. Step 5: Solve for x
    x = 150,045,349.36/13,830.04
  6. Step 6: Final answer
    x = 10,849.23

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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.