Home / 14,303.55-19,735.68-8,639.22

Finding the Fourth Proportional to 14,303.55, 19,735.68 and 8,639.22

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Solution

The fourth proportional to 14,303.55, 19,735.68 and 8,639.22 is: 11,920.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.55 : 19,735.68 = 8,639.22 : x
  2. Step 2: Convert to fraction form
    14,303.55/19,735.68 = 8,639.22/x
  3. Step 3: Cross multiply
    14,303.55x = 19,735.68 × 8,639.22
  4. Step 4: Simplify right side
    14,303.55x = 170,500,881.37
  5. Step 5: Solve for x
    x = 170,500,881.37/14,303.55
  6. Step 6: Final answer
    x = 11,920.18

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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.