Home / 15,862.80-21,855.42-10,475.67

Finding the Fourth Proportional to 15,862.80, 21,855.42 and 10,475.67

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Solution

The fourth proportional to 15,862.80, 21,855.42 and 10,475.67 is: 14,433.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,862.80 : 21,855.42 = 10,475.67 : x
  2. Step 2: Convert to fraction form
    15,862.80/21,855.42 = 10,475.67/x
  3. Step 3: Cross multiply
    15,862.80x = 21,855.42 × 10,475.67
  4. Step 4: Simplify right side
    15,862.80x = 228,950,167.63
  5. Step 5: Solve for x
    x = 228,950,167.63/15,862.80
  6. Step 6: Final answer
    x = 14,433.15

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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.