Home / 14,421.36-21,632.16-12,327.78

Finding the Fourth Proportional to 14,421.36, 21,632.16 and 12,327.78

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Solution

The fourth proportional to 14,421.36, 21,632.16 and 12,327.78 is: 18,491.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,421.36 : 21,632.16 = 12,327.78 : x
  2. Step 2: Convert to fraction form
    14,421.36/21,632.16 = 12,327.78/x
  3. Step 3: Cross multiply
    14,421.36x = 21,632.16 × 12,327.78
  4. Step 4: Simplify right side
    14,421.36x = 266,676,509.40
  5. Step 5: Solve for x
    x = 266,676,509.40/14,421.36
  6. Step 6: Final answer
    x = 18,491.77

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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.