Home / 19,390.51-29,085.88-6,911.02

Finding the Fourth Proportional to 19,390.51, 29,085.88 and 6,911.02

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Solution

The fourth proportional to 19,390.51, 29,085.88 and 6,911.02 is: 10,366.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,390.51 : 29,085.88 = 6,911.02 : x
  2. Step 2: Convert to fraction form
    19,390.51/29,085.88 = 6,911.02/x
  3. Step 3: Cross multiply
    19,390.51x = 29,085.88 × 6,911.02
  4. Step 4: Simplify right side
    19,390.51x = 201,013,063.84
  5. Step 5: Solve for x
    x = 201,013,063.84/19,390.51
  6. Step 6: Final answer
    x = 10,366.57

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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.