Home / 16,779.95-25,154.21-5,678.87

Finding the Fourth Proportional to 16,779.95, 25,154.21 and 5,678.87

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Solution

The fourth proportional to 16,779.95, 25,154.21 and 5,678.87 is: 8,512.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,779.95 : 25,154.21 = 5,678.87 : x
  2. Step 2: Convert to fraction form
    16,779.95/25,154.21 = 5,678.87/x
  3. Step 3: Cross multiply
    16,779.95x = 25,154.21 × 5,678.87
  4. Step 4: Simplify right side
    16,779.95x = 142,847,518.46
  5. Step 5: Solve for x
    x = 142,847,518.46/16,779.95
  6. Step 6: Final answer
    x = 8,512.99

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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.