Home / 14,453.48-19,951.38-12,429

Finding the Fourth Proportional to 14,453.48, 19,951.38 and 12,429

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Solution

The fourth proportional to 14,453.48, 19,951.38 and 12,429 is: 17,156.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,453.48 : 19,951.38 = 12,429 : x
  2. Step 2: Convert to fraction form
    14,453.48/19,951.38 = 12,429/x
  3. Step 3: Cross multiply
    14,453.48x = 19,951.38 × 12,429
  4. Step 4: Simplify right side
    14,453.48x = 247,975,702.02
  5. Step 5: Solve for x
    x = 247,975,702.02/14,453.48
  6. Step 6: Final answer
    x = 17,156.82

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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.