Home / 14,715.80-20,311.26-9,686.84

Finding the Fourth Proportional to 14,715.80, 20,311.26 and 9,686.84

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Solution

The fourth proportional to 14,715.80, 20,311.26 and 9,686.84 is: 13,370.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,715.80 : 20,311.26 = 9,686.84 : x
  2. Step 2: Convert to fraction form
    14,715.80/20,311.26 = 9,686.84/x
  3. Step 3: Cross multiply
    14,715.80x = 20,311.26 × 9,686.84
  4. Step 4: Simplify right side
    14,715.80x = 196,751,925.82
  5. Step 5: Solve for x
    x = 196,751,925.82/14,715.80
  6. Step 6: Final answer
    x = 13,370.11

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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.