Home / 11,202.08-15,458.02-6,421.98

Finding the Fourth Proportional to 11,202.08, 15,458.02 and 6,421.98

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Solution

The fourth proportional to 11,202.08, 15,458.02 and 6,421.98 is: 8,861.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,202.08 : 15,458.02 = 6,421.98 : x
  2. Step 2: Convert to fraction form
    11,202.08/15,458.02 = 6,421.98/x
  3. Step 3: Cross multiply
    11,202.08x = 15,458.02 × 6,421.98
  4. Step 4: Simplify right side
    11,202.08x = 99,271,068.30
  5. Step 5: Solve for x
    x = 99,271,068.30/11,202.08
  6. Step 6: Final answer
    x = 8,861.84

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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.