Home / 14,513.04-20,023.74-8,139.06

Finding the Fourth Proportional to 14,513.04, 20,023.74 and 8,139.06

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Solution

The fourth proportional to 14,513.04, 20,023.74 and 8,139.06 is: 11,229.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,513.04 : 20,023.74 = 8,139.06 : x
  2. Step 2: Convert to fraction form
    14,513.04/20,023.74 = 8,139.06/x
  3. Step 3: Cross multiply
    14,513.04x = 20,023.74 × 8,139.06
  4. Step 4: Simplify right side
    14,513.04x = 162,974,421.28
  5. Step 5: Solve for x
    x = 162,974,421.28/14,513.04
  6. Step 6: Final answer
    x = 11,229.52

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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.