Home / 15,861.80-21,854.04-10,474.67

Finding the Fourth Proportional to 15,861.80, 21,854.04 and 10,474.67

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Solution

The fourth proportional to 15,861.80, 21,854.04 and 10,474.67 is: 14,431.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,861.80 : 21,854.04 = 10,474.67 : x
  2. Step 2: Convert to fraction form
    15,861.80/21,854.04 = 10,474.67/x
  3. Step 3: Cross multiply
    15,861.80x = 21,854.04 × 10,474.67
  4. Step 4: Simplify right side
    15,861.80x = 228,913,857.17
  5. Step 5: Solve for x
    x = 228,913,857.17/15,861.80
  6. Step 6: Final answer
    x = 14,431.77

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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.