Home / 15,861.18-21,853.18-10,474.05

Finding the Fourth Proportional to 15,861.18, 21,853.18 and 10,474.05

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Solution

The fourth proportional to 15,861.18, 21,853.18 and 10,474.05 is: 14,430.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.18 : 21,853.18 = 10,474.05 : x
  2. Step 2: Convert to fraction form
    15,861.18/21,853.18 = 10,474.05/x
  3. Step 3: Cross multiply
    15,861.18x = 21,853.18 × 10,474.05
  4. Step 4: Simplify right side
    15,861.18x = 228,891,299.98
  5. Step 5: Solve for x
    x = 228,891,299.98/15,861.18
  6. Step 6: Final answer
    x = 14,430.91

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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.