Home / 14,643.51-20,217.23-11,279.98

Finding the Fourth Proportional to 14,643.51, 20,217.23 and 11,279.98

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Solution

The fourth proportional to 14,643.51, 20,217.23 and 11,279.98 is: 15,573.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,643.51 : 20,217.23 = 11,279.98 : x
  2. Step 2: Convert to fraction form
    14,643.51/20,217.23 = 11,279.98/x
  3. Step 3: Cross multiply
    14,643.51x = 20,217.23 × 11,279.98
  4. Step 4: Simplify right side
    14,643.51x = 228,049,950.06
  5. Step 5: Solve for x
    x = 228,049,950.06/14,643.51
  6. Step 6: Final answer
    x = 15,573.45

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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.