Home / 14,585.43-20,120.89-9,547.43

Finding the Fourth Proportional to 14,585.43, 20,120.89 and 9,547.43

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Solution

The fourth proportional to 14,585.43, 20,120.89 and 9,547.43 is: 13,170.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,585.43 : 20,120.89 = 9,547.43 : x
  2. Step 2: Convert to fraction form
    14,585.43/20,120.89 = 9,547.43/x
  3. Step 3: Cross multiply
    14,585.43x = 20,120.89 × 9,547.43
  4. Step 4: Simplify right side
    14,585.43x = 192,102,788.81
  5. Step 5: Solve for x
    x = 192,102,788.81/14,585.43
  6. Step 6: Final answer
    x = 13,170.87

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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.