Home / 14,353.52-21,530.40-12,399.92

Finding the Fourth Proportional to 14,353.52, 21,530.40 and 12,399.92

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Solution

The fourth proportional to 14,353.52, 21,530.40 and 12,399.92 is: 18,599.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,353.52 : 21,530.40 = 12,399.92 : x
  2. Step 2: Convert to fraction form
    14,353.52/21,530.40 = 12,399.92/x
  3. Step 3: Cross multiply
    14,353.52x = 21,530.40 × 12,399.92
  4. Step 4: Simplify right side
    14,353.52x = 266,975,237.57
  5. Step 5: Solve for x
    x = 266,975,237.57/14,353.52
  6. Step 6: Final answer
    x = 18,599.98

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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.