Home / 13,516.10-18,653.14-7,547.64

Finding the Fourth Proportional to 13,516.10, 18,653.14 and 7,547.64

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Solution

The fourth proportional to 13,516.10, 18,653.14 and 7,547.64 is: 10,416.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,516.10 : 18,653.14 = 7,547.64 : x
  2. Step 2: Convert to fraction form
    13,516.10/18,653.14 = 7,547.64/x
  3. Step 3: Cross multiply
    13,516.10x = 18,653.14 × 7,547.64
  4. Step 4: Simplify right side
    13,516.10x = 140,787,185.59
  5. Step 5: Solve for x
    x = 140,787,185.59/13,516.10
  6. Step 6: Final answer
    x = 10,416.26

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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.