Home / 18,779.09-25,915.61-10,281.67

Finding the Fourth Proportional to 18,779.09, 25,915.61 and 10,281.67

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Solution

The fourth proportional to 18,779.09, 25,915.61 and 10,281.67 is: 14,188.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,779.09 : 25,915.61 = 10,281.67 : x
  2. Step 2: Convert to fraction form
    18,779.09/25,915.61 = 10,281.67/x
  3. Step 3: Cross multiply
    18,779.09x = 25,915.61 × 10,281.67
  4. Step 4: Simplify right side
    18,779.09x = 266,455,710.78
  5. Step 5: Solve for x
    x = 266,455,710.78/18,779.09
  6. Step 6: Final answer
    x = 14,188.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.