Home / 19,717.77-27,210.15-11,219.70

Finding the Fourth Proportional to 19,717.77, 27,210.15 and 11,219.70

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Solution

The fourth proportional to 19,717.77, 27,210.15 and 11,219.70 is: 15,482.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.77 : 27,210.15 = 11,219.70 : x
  2. Step 2: Convert to fraction form
    19,717.77/27,210.15 = 11,219.70/x
  3. Step 3: Cross multiply
    19,717.77x = 27,210.15 × 11,219.70
  4. Step 4: Simplify right side
    19,717.77x = 305,289,541.83
  5. Step 5: Solve for x
    x = 305,289,541.83/19,717.77
  6. Step 6: Final answer
    x = 15,482.97

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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.