Home / 19,426.64-29,122.68-7,111.76

Finding the Fourth Proportional to 19,426.64, 29,122.68 and 7,111.76

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Solution

The fourth proportional to 19,426.64, 29,122.68 and 7,111.76 is: 10,661.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,426.64 : 29,122.68 = 7,111.76 : x
  2. Step 2: Convert to fraction form
    19,426.64/29,122.68 = 7,111.76/x
  3. Step 3: Cross multiply
    19,426.64x = 29,122.68 × 7,111.76
  4. Step 4: Simplify right side
    19,426.64x = 207,113,510.72
  5. Step 5: Solve for x
    x = 207,113,510.72/19,426.64
  6. Step 6: Final answer
    x = 10,661.31

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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.