Home / 14,106.45-21,159.63-4,245.72

Finding the Fourth Proportional to 14,106.45, 21,159.63 and 4,245.72

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Solution

The fourth proportional to 14,106.45, 21,159.63 and 4,245.72 is: 6,368.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,106.45 : 21,159.63 = 4,245.72 : x
  2. Step 2: Convert to fraction form
    14,106.45/21,159.63 = 4,245.72/x
  3. Step 3: Cross multiply
    14,106.45x = 21,159.63 × 4,245.72
  4. Step 4: Simplify right side
    14,106.45x = 89,837,864.28
  5. Step 5: Solve for x
    x = 89,837,864.28/14,106.45
  6. Step 6: Final answer
    x = 6,368.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.