Home / 12,876.48-19,283.04-6,281.40

Finding the Fourth Proportional to 12,876.48, 19,283.04 and 6,281.40

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Solution

The fourth proportional to 12,876.48, 19,283.04 and 6,281.40 is: 9,406.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,876.48 : 19,283.04 = 6,281.40 : x
  2. Step 2: Convert to fraction form
    12,876.48/19,283.04 = 6,281.40/x
  3. Step 3: Cross multiply
    12,876.48x = 19,283.04 × 6,281.40
  4. Step 4: Simplify right side
    12,876.48x = 121,124,487.46
  5. Step 5: Solve for x
    x = 121,124,487.46/12,876.48
  6. Step 6: Final answer
    x = 9,406.65

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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.