Home / 14,515.44-20,031.12-8,547.36

Finding the Fourth Proportional to 14,515.44, 20,031.12 and 8,547.36

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Solution

The fourth proportional to 14,515.44, 20,031.12 and 8,547.36 is: 11,795.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,515.44 : 20,031.12 = 8,547.36 : x
  2. Step 2: Convert to fraction form
    14,515.44/20,031.12 = 8,547.36/x
  3. Step 3: Cross multiply
    14,515.44x = 20,031.12 × 8,547.36
  4. Step 4: Simplify right side
    14,515.44x = 171,213,193.84
  5. Step 5: Solve for x
    x = 171,213,193.84/14,515.44
  6. Step 6: Final answer
    x = 11,795.25

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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.