Home / 8,779.04-12,115.08-5,635.24

Finding the Fourth Proportional to 8,779.04, 12,115.08 and 5,635.24

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Solution

The fourth proportional to 8,779.04, 12,115.08 and 5,635.24 is: 7,776.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,779.04 : 12,115.08 = 5,635.24 : x
  2. Step 2: Convert to fraction form
    8,779.04/12,115.08 = 5,635.24/x
  3. Step 3: Cross multiply
    8,779.04x = 12,115.08 × 5,635.24
  4. Step 4: Simplify right side
    8,779.04x = 68,271,383.42
  5. Step 5: Solve for x
    x = 68,271,383.42/8,779.04
  6. Step 6: Final answer
    x = 7,776.63

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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.