Home / 13,045.92-19,564.76-4,278.78

Finding the Fourth Proportional to 13,045.92, 19,564.76 and 4,278.78

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Solution

The fourth proportional to 13,045.92, 19,564.76 and 4,278.78 is: 6,416.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,045.92 : 19,564.76 = 4,278.78 : x
  2. Step 2: Convert to fraction form
    13,045.92/19,564.76 = 4,278.78/x
  3. Step 3: Cross multiply
    13,045.92x = 19,564.76 × 4,278.78
  4. Step 4: Simplify right side
    13,045.92x = 83,713,303.79
  5. Step 5: Solve for x
    x = 83,713,303.79/13,045.92
  6. Step 6: Final answer
    x = 6,416.82

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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.