Home / 15,618.53-23,421.90-5,085.80

Finding the Fourth Proportional to 15,618.53, 23,421.90 and 5,085.80

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Solution

The fourth proportional to 15,618.53, 23,421.90 and 5,085.80 is: 7,626.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,618.53 : 23,421.90 = 5,085.80 : x
  2. Step 2: Convert to fraction form
    15,618.53/23,421.90 = 5,085.80/x
  3. Step 3: Cross multiply
    15,618.53x = 23,421.90 × 5,085.80
  4. Step 4: Simplify right side
    15,618.53x = 119,119,099.02
  5. Step 5: Solve for x
    x = 119,119,099.02/15,618.53
  6. Step 6: Final answer
    x = 7,626.78

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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.