Home / 14,889.84-20,547.91-8,175.30

Finding the Fourth Proportional to 14,889.84, 20,547.91 and 8,175.30

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Solution

The fourth proportional to 14,889.84, 20,547.91 and 8,175.30 is: 11,281.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,889.84 : 20,547.91 = 8,175.30 : x
  2. Step 2: Convert to fraction form
    14,889.84/20,547.91 = 8,175.30/x
  3. Step 3: Cross multiply
    14,889.84x = 20,547.91 × 8,175.30
  4. Step 4: Simplify right side
    14,889.84x = 167,985,328.62
  5. Step 5: Solve for x
    x = 167,985,328.62/14,889.84
  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.