Home / 15,136.04-20,879.10-9,084.67

Finding the Fourth Proportional to 15,136.04, 20,879.10 and 9,084.67

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Solution

The fourth proportional to 15,136.04, 20,879.10 and 9,084.67 is: 12,531.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,136.04 : 20,879.10 = 9,084.67 : x
  2. Step 2: Convert to fraction form
    15,136.04/20,879.10 = 9,084.67/x
  3. Step 3: Cross multiply
    15,136.04x = 20,879.10 × 9,084.67
  4. Step 4: Simplify right side
    15,136.04x = 189,679,733.40
  5. Step 5: Solve for x
    x = 189,679,733.40/15,136.04
  6. Step 6: Final answer
    x = 12,531.66

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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.