Home / 19,719.64-29,562.18-7,416.28

Finding the Fourth Proportional to 19,719.64, 29,562.18 and 7,416.28

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Solution

The fourth proportional to 19,719.64, 29,562.18 and 7,416.28 is: 11,117.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,719.64 : 29,562.18 = 7,416.28 : x
  2. Step 2: Convert to fraction form
    19,719.64/29,562.18 = 7,416.28/x
  3. Step 3: Cross multiply
    19,719.64x = 29,562.18 × 7,416.28
  4. Step 4: Simplify right side
    19,719.64x = 219,241,404.29
  5. Step 5: Solve for x
    x = 219,241,404.29/19,719.64
  6. Step 6: Final answer
    x = 11,117.92

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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.