Home / 12,006.21-18,018.50-5,437.01

Finding the Fourth Proportional to 12,006.21, 18,018.50 and 5,437.01

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Solution

The fourth proportional to 12,006.21, 18,018.50 and 5,437.01 is: 8,159.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,006.21 : 18,018.50 = 5,437.01 : x
  2. Step 2: Convert to fraction form
    12,006.21/18,018.50 = 5,437.01/x
  3. Step 3: Cross multiply
    12,006.21x = 18,018.50 × 5,437.01
  4. Step 4: Simplify right side
    12,006.21x = 97,966,711.78
  5. Step 5: Solve for x
    x = 97,966,711.78/12,006.21
  6. Step 6: Final answer
    x = 8,159.67

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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.