Home / 14,640.61-21,962.13-4,779.67

Finding the Fourth Proportional to 14,640.61, 21,962.13 and 4,779.67

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Solution

The fourth proportional to 14,640.61, 21,962.13 and 4,779.67 is: 7,169.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,640.61 : 21,962.13 = 4,779.67 : x
  2. Step 2: Convert to fraction form
    14,640.61/21,962.13 = 4,779.67/x
  3. Step 3: Cross multiply
    14,640.61x = 21,962.13 × 4,779.67
  4. Step 4: Simplify right side
    14,640.61x = 104,971,600.19
  5. Step 5: Solve for x
    x = 104,971,600.19/14,640.61
  6. Step 6: Final answer
    x = 7,169.89

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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.