Home / 15,437.21-21,303.36-8,363.62

Finding the Fourth Proportional to 15,437.21, 21,303.36 and 8,363.62

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Solution

The fourth proportional to 15,437.21, 21,303.36 and 8,363.62 is: 11,541.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,437.21 : 21,303.36 = 8,363.62 : x
  2. Step 2: Convert to fraction form
    15,437.21/21,303.36 = 8,363.62/x
  3. Step 3: Cross multiply
    15,437.21x = 21,303.36 × 8,363.62
  4. Step 4: Simplify right side
    15,437.21x = 178,173,234.39
  5. Step 5: Solve for x
    x = 178,173,234.39/15,437.21
  6. Step 6: Final answer
    x = 11,541.81

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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.