Home / 14,570.40-20,106.96-8,282.36

Finding the Fourth Proportional to 14,570.40, 20,106.96 and 8,282.36

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Solution

The fourth proportional to 14,570.40, 20,106.96 and 8,282.36 is: 11,429.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,570.40 : 20,106.96 = 8,282.36 : x
  2. Step 2: Convert to fraction form
    14,570.40/20,106.96 = 8,282.36/x
  3. Step 3: Cross multiply
    14,570.40x = 20,106.96 × 8,282.36
  4. Step 4: Simplify right side
    14,570.40x = 166,533,081.23
  5. Step 5: Solve for x
    x = 166,533,081.23/14,570.40
  6. Step 6: Final answer
    x = 11,429.55

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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.