Home / 15,124.40-22,686.60-12,208.40

Finding the Fourth Proportional to 15,124.40, 22,686.60 and 12,208.40

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Solution

The fourth proportional to 15,124.40, 22,686.60 and 12,208.40 is: 18,312.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,124.40 : 22,686.60 = 12,208.40 : x
  2. Step 2: Convert to fraction form
    15,124.40/22,686.60 = 12,208.40/x
  3. Step 3: Cross multiply
    15,124.40x = 22,686.60 × 12,208.40
  4. Step 4: Simplify right side
    15,124.40x = 276,967,087.44
  5. Step 5: Solve for x
    x = 276,967,087.44/15,124.40
  6. Step 6: Final answer
    x = 18,312.60

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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.