Home / 8,521.12-12,779.76-2,365.60

Finding the Fourth Proportional to 8,521.12, 12,779.76 and 2,365.60

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Solution

The fourth proportional to 8,521.12, 12,779.76 and 2,365.60 is: 3,547.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,521.12 : 12,779.76 = 2,365.60 : x
  2. Step 2: Convert to fraction form
    8,521.12/12,779.76 = 2,365.60/x
  3. Step 3: Cross multiply
    8,521.12x = 12,779.76 × 2,365.60
  4. Step 4: Simplify right side
    8,521.12x = 30,231,800.26
  5. Step 5: Solve for x
    x = 30,231,800.26/8,521.12
  6. Step 6: Final answer
    x = 3,547.87

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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.