Home / 14,483.21-19,986.70-8,109.77

Finding the Fourth Proportional to 14,483.21, 19,986.70 and 8,109.77

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Solution

The fourth proportional to 14,483.21, 19,986.70 and 8,109.77 is: 11,191.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,483.21 : 19,986.70 = 8,109.77 : x
  2. Step 2: Convert to fraction form
    14,483.21/19,986.70 = 8,109.77/x
  3. Step 3: Cross multiply
    14,483.21x = 19,986.70 × 8,109.77
  4. Step 4: Simplify right side
    14,483.21x = 162,087,547.48
  5. Step 5: Solve for x
    x = 162,087,547.48/14,483.21
  6. Step 6: Final answer
    x = 11,191.41

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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.