Home / 14,214.68-19,628.64-8,918.60

Finding the Fourth Proportional to 14,214.68, 19,628.64 and 8,918.60

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Solution

The fourth proportional to 14,214.68, 19,628.64 and 8,918.60 is: 12,315.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,214.68 : 19,628.64 = 8,918.60 : x
  2. Step 2: Convert to fraction form
    14,214.68/19,628.64 = 8,918.60/x
  3. Step 3: Cross multiply
    14,214.68x = 19,628.64 × 8,918.60
  4. Step 4: Simplify right side
    14,214.68x = 175,059,988.70
  5. Step 5: Solve for x
    x = 175,059,988.70/14,214.68
  6. Step 6: Final answer
    x = 12,315.44

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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.