Home / 19,718.21-27,210.93-10,765.68

Finding the Fourth Proportional to 19,718.21, 27,210.93 and 10,765.68

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Solution

The fourth proportional to 19,718.21, 27,210.93 and 10,765.68 is: 14,856.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,718.21 : 27,210.93 = 10,765.68 : x
  2. Step 2: Convert to fraction form
    19,718.21/27,210.93 = 10,765.68/x
  3. Step 3: Cross multiply
    19,718.21x = 27,210.93 × 10,765.68
  4. Step 4: Simplify right side
    19,718.21x = 292,944,164.88
  5. Step 5: Solve for x
    x = 292,944,164.88/19,718.21
  6. Step 6: Final answer
    x = 14,856.53

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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.