Home / 19,419.24-29,130.40-6,938.76

Finding the Fourth Proportional to 19,419.24, 29,130.40 and 6,938.76

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Solution

The fourth proportional to 19,419.24, 29,130.40 and 6,938.76 is: 10,408.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,419.24 : 29,130.40 = 6,938.76 : x
  2. Step 2: Convert to fraction form
    19,419.24/29,130.40 = 6,938.76/x
  3. Step 3: Cross multiply
    19,419.24x = 29,130.40 × 6,938.76
  4. Step 4: Simplify right side
    19,419.24x = 202,128,854.30
  5. Step 5: Solve for x
    x = 202,128,854.30/19,419.24
  6. Step 6: Final answer
    x = 10,408.69

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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.