Home / 12,779.04-19,168.66-4,459.02

Finding the Fourth Proportional to 12,779.04, 19,168.66 and 4,459.02

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Solution

The fourth proportional to 12,779.04, 19,168.66 and 4,459.02 is: 6,688.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,779.04 : 19,168.66 = 4,459.02 : x
  2. Step 2: Convert to fraction form
    12,779.04/19,168.66 = 4,459.02/x
  3. Step 3: Cross multiply
    12,779.04x = 19,168.66 × 4,459.02
  4. Step 4: Simplify right side
    12,779.04x = 85,473,438.31
  5. Step 5: Solve for x
    x = 85,473,438.31/12,779.04
  6. Step 6: Final answer
    x = 6,688.56

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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.