Home / 14,889.54-20,547.42-8,175

Finding the Fourth Proportional to 14,889.54, 20,547.42 and 8,175

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Solution

The fourth proportional to 14,889.54, 20,547.42 and 8,175 is: 11,281.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.54 : 20,547.42 = 8,175 : x
  2. Step 2: Convert to fraction form
    14,889.54/20,547.42 = 8,175/x
  3. Step 3: Cross multiply
    14,889.54x = 20,547.42 × 8,175
  4. Step 4: Simplify right side
    14,889.54x = 167,975,158.50
  5. Step 5: Solve for x
    x = 167,975,158.50/14,889.54
  6. Step 6: Final answer
    x = 11,281.42

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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.