Home / 15,427.21-23,137.88-7,521.79

Finding the Fourth Proportional to 15,427.21, 23,137.88 and 7,521.79

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Solution

The fourth proportional to 15,427.21, 23,137.88 and 7,521.79 is: 11,281.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,427.21 : 23,137.88 = 7,521.79 : x
  2. Step 2: Convert to fraction form
    15,427.21/23,137.88 = 7,521.79/x
  3. Step 3: Cross multiply
    15,427.21x = 23,137.88 × 7,521.79
  4. Step 4: Simplify right side
    15,427.21x = 174,038,274.41
  5. Step 5: Solve for x
    x = 174,038,274.41/15,427.21
  6. Step 6: Final answer
    x = 11,281.25

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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.