Home / 14,889.20-20,547.13-8,175.26

Finding the Fourth Proportional to 14,889.20, 20,547.13 and 8,175.26

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Solution

The fourth proportional to 14,889.20, 20,547.13 and 8,175.26 is: 11,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.20 : 20,547.13 = 8,175.26 : x
  2. Step 2: Convert to fraction form
    14,889.20/20,547.13 = 8,175.26/x
  3. Step 3: Cross multiply
    14,889.20x = 20,547.13 × 8,175.26
  4. Step 4: Simplify right side
    14,889.20x = 167,978,088.86
  5. Step 5: Solve for x
    x = 167,978,088.86/14,889.20
  6. Step 6: Final answer
    x = 11,281.88

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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.