Home / 15,779.10-23,659.65-5,918.70

Finding the Fourth Proportional to 15,779.10, 23,659.65 and 5,918.70

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Solution

The fourth proportional to 15,779.10, 23,659.65 and 5,918.70 is: 8,874.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779.10 : 23,659.65 = 5,918.70 : x
  2. Step 2: Convert to fraction form
    15,779.10/23,659.65 = 5,918.70/x
  3. Step 3: Cross multiply
    15,779.10x = 23,659.65 × 5,918.70
  4. Step 4: Simplify right side
    15,779.10x = 140,034,370.46
  5. Step 5: Solve for x
    x = 140,034,370.46/15,779.10
  6. Step 6: Final answer
    x = 8,874.67

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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.