Home / 19,717.40-27,210.05-10,764.90

Finding the Fourth Proportional to 19,717.40, 27,210.05 and 10,764.90

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Solution

The fourth proportional to 19,717.40, 27,210.05 and 10,764.90 is: 14,855.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,717.40 : 27,210.05 = 10,764.90 : x
  2. Step 2: Convert to fraction form
    19,717.40/27,210.05 = 10,764.90/x
  3. Step 3: Cross multiply
    19,717.40x = 27,210.05 × 10,764.90
  4. Step 4: Simplify right side
    19,717.40x = 292,913,453.79
  5. Step 5: Solve for x
    x = 292,913,453.79/19,717.40
  6. Step 6: Final answer
    x = 14,855.59

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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.