Home / 19,419.18-29,126.61-6,938.70

Finding the Fourth Proportional to 19,419.18, 29,126.61 and 6,938.70

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Solution

The fourth proportional to 19,419.18, 29,126.61 and 6,938.70 is: 10,407.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.18 : 29,126.61 = 6,938.70 : x
  2. Step 2: Convert to fraction form
    19,419.18/29,126.61 = 6,938.70/x
  3. Step 3: Cross multiply
    19,419.18x = 29,126.61 × 6,938.70
  4. Step 4: Simplify right side
    19,419.18x = 202,100,808.81
  5. Step 5: Solve for x
    x = 202,100,808.81/19,419.18
  6. Step 6: Final answer
    x = 10,407.28

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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.