Home / 19,461.12-29,203.20-7,157.76

Finding the Fourth Proportional to 19,461.12, 29,203.20 and 7,157.76

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Solution

The fourth proportional to 19,461.12, 29,203.20 and 7,157.76 is: 10,740.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,461.12 : 29,203.20 = 7,157.76 : x
  2. Step 2: Convert to fraction form
    19,461.12/29,203.20 = 7,157.76/x
  3. Step 3: Cross multiply
    19,461.12x = 29,203.20 × 7,157.76
  4. Step 4: Simplify right side
    19,461.12x = 209,029,496.83
  5. Step 5: Solve for x
    x = 209,029,496.83/19,461.12
  6. Step 6: Final answer
    x = 10,740.88

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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.