Home / 11,478.46-15,838.34-6,763.68

Finding the Fourth Proportional to 11,478.46, 15,838.34 and 6,763.68

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Solution

The fourth proportional to 11,478.46, 15,838.34 and 6,763.68 is: 9,332.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,478.46 : 15,838.34 = 6,763.68 : x
  2. Step 2: Convert to fraction form
    11,478.46/15,838.34 = 6,763.68/x
  3. Step 3: Cross multiply
    11,478.46x = 15,838.34 × 6,763.68
  4. Step 4: Simplify right side
    11,478.46x = 107,125,463.49
  5. Step 5: Solve for x
    x = 107,125,463.49/11,478.46
  6. Step 6: Final answer
    x = 9,332.74

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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.