Home / 19,691.34-29,528.46-7,681.74

Finding the Fourth Proportional to 19,691.34, 29,528.46 and 7,681.74

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Solution

The fourth proportional to 19,691.34, 29,528.46 and 7,681.74 is: 11,519.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,691.34 : 29,528.46 = 7,681.74 : x
  2. Step 2: Convert to fraction form
    19,691.34/29,528.46 = 7,681.74/x
  3. Step 3: Cross multiply
    19,691.34x = 29,528.46 × 7,681.74
  4. Step 4: Simplify right side
    19,691.34x = 226,829,952.32
  5. Step 5: Solve for x
    x = 226,829,952.32/19,691.34
  6. Step 6: Final answer
    x = 11,519.27

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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.