Home / 14,303.81-21,458.55-5,538.80

Finding the Fourth Proportional to 14,303.81, 21,458.55 and 5,538.80

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Solution

The fourth proportional to 14,303.81, 21,458.55 and 5,538.80 is: 8,309.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,303.81 : 21,458.55 = 5,538.80 : x
  2. Step 2: Convert to fraction form
    14,303.81/21,458.55 = 5,538.80/x
  3. Step 3: Cross multiply
    14,303.81x = 21,458.55 × 5,538.80
  4. Step 4: Simplify right side
    14,303.81x = 118,854,616.74
  5. Step 5: Solve for x
    x = 118,854,616.74/14,303.81
  6. Step 6: Final answer
    x = 8,309.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.