Home / 15,615.48-23,367.60-12,515.40

Finding the Fourth Proportional to 15,615.48, 23,367.60 and 12,515.40

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Solution

The fourth proportional to 15,615.48, 23,367.60 and 12,515.40 is: 18,728.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,615.48 : 23,367.60 = 12,515.40 : x
  2. Step 2: Convert to fraction form
    15,615.48/23,367.60 = 12,515.40/x
  3. Step 3: Cross multiply
    15,615.48x = 23,367.60 × 12,515.40
  4. Step 4: Simplify right side
    15,615.48x = 292,454,861.04
  5. Step 5: Solve for x
    x = 292,454,861.04/15,615.48
  6. Step 6: Final answer
    x = 18,728.52

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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.