Home / 14,889.57-20,547.86-8,175.48

Finding the Fourth Proportional to 14,889.57, 20,547.86 and 8,175.48

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Solution

The fourth proportional to 14,889.57, 20,547.86 and 8,175.48 is: 11,282.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.57 : 20,547.86 = 8,175.48 : x
  2. Step 2: Convert to fraction form
    14,889.57/20,547.86 = 8,175.48/x
  3. Step 3: Cross multiply
    14,889.57x = 20,547.86 × 8,175.48
  4. Step 4: Simplify right side
    14,889.57x = 167,988,618.47
  5. Step 5: Solve for x
    x = 167,988,618.47/14,889.57
  6. Step 6: Final answer
    x = 11,282.30

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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.