Home / 12,887.48-19,299.54-6,292.40

Finding the Fourth Proportional to 12,887.48, 19,299.54 and 6,292.40

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Solution

The fourth proportional to 12,887.48, 19,299.54 and 6,292.40 is: 9,423.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,887.48 : 19,299.54 = 6,292.40 : x
  2. Step 2: Convert to fraction form
    12,887.48/19,299.54 = 6,292.40/x
  3. Step 3: Cross multiply
    12,887.48x = 19,299.54 × 6,292.40
  4. Step 4: Simplify right side
    12,887.48x = 121,440,425.50
  5. Step 5: Solve for x
    x = 121,440,425.50/12,887.48
  6. Step 6: Final answer
    x = 9,423.13

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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.