Home / 14,019.20-21,035.40-6,999.76

Finding the Fourth Proportional to 14,019.20, 21,035.40 and 6,999.76

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Solution

The fourth proportional to 14,019.20, 21,035.40 and 6,999.76 is: 10,502.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,019.20 : 21,035.40 = 6,999.76 : x
  2. Step 2: Convert to fraction form
    14,019.20/21,035.40 = 6,999.76/x
  3. Step 3: Cross multiply
    14,019.20x = 21,035.40 × 6,999.76
  4. Step 4: Simplify right side
    14,019.20x = 147,242,751.50
  5. Step 5: Solve for x
    x = 147,242,751.50/14,019.20
  6. Step 6: Final answer
    x = 10,502.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.