Home / 14,128.48-19,488.72-9,348.40

Finding the Fourth Proportional to 14,128.48, 19,488.72 and 9,348.40

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Solution

The fourth proportional to 14,128.48, 19,488.72 and 9,348.40 is: 12,895.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128.48 : 19,488.72 = 9,348.40 : x
  2. Step 2: Convert to fraction form
    14,128.48/19,488.72 = 9,348.40/x
  3. Step 3: Cross multiply
    14,128.48x = 19,488.72 × 9,348.40
  4. Step 4: Simplify right side
    14,128.48x = 182,188,350.05
  5. Step 5: Solve for x
    x = 182,188,350.05/14,128.48
  6. Step 6: Final answer
    x = 12,895.11

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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.