Home / 19,738.81-29,612.86-6,411.76

Finding the Fourth Proportional to 19,738.81, 29,612.86 and 6,411.76

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Solution

The fourth proportional to 19,738.81, 29,612.86 and 6,411.76 is: 9,619.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,738.81 : 29,612.86 = 6,411.76 : x
  2. Step 2: Convert to fraction form
    19,738.81/29,612.86 = 6,411.76/x
  3. Step 3: Cross multiply
    19,738.81x = 29,612.86 × 6,411.76
  4. Step 4: Simplify right side
    19,738.81x = 189,870,461.17
  5. Step 5: Solve for x
    x = 189,870,461.17/19,738.81
  6. Step 6: Final answer
    x = 9,619.15

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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.