Home / 14,886.77-20,544.48-8,172.35

Finding the Fourth Proportional to 14,886.77, 20,544.48 and 8,172.35

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Solution

The fourth proportional to 14,886.77, 20,544.48 and 8,172.35 is: 11,278.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,886.77 : 20,544.48 = 8,172.35 : x
  2. Step 2: Convert to fraction form
    14,886.77/20,544.48 = 8,172.35/x
  3. Step 3: Cross multiply
    14,886.77x = 20,544.48 × 8,172.35
  4. Step 4: Simplify right side
    14,886.77x = 167,896,578.41
  5. Step 5: Solve for x
    x = 167,896,578.41/14,886.77
  6. Step 6: Final answer
    x = 11,278.24

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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.