Home / 13,903.06-20,857.88-4,543.07

Finding the Fourth Proportional to 13,903.06, 20,857.88 and 4,543.07

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Solution

The fourth proportional to 13,903.06, 20,857.88 and 4,543.07 is: 6,815.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.06 : 20,857.88 = 4,543.07 : x
  2. Step 2: Convert to fraction form
    13,903.06/20,857.88 = 4,543.07/x
  3. Step 3: Cross multiply
    13,903.06x = 20,857.88 × 4,543.07
  4. Step 4: Simplify right side
    13,903.06x = 94,758,808.89
  5. Step 5: Solve for x
    x = 94,758,808.89/13,903.06
  6. Step 6: Final answer
    x = 6,815.68

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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.