Home / 19,125.55-28,677.28-7,425.10

Finding the Fourth Proportional to 19,125.55, 28,677.28 and 7,425.10

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Solution

The fourth proportional to 19,125.55, 28,677.28 and 7,425.10 is: 11,133.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.55 : 28,677.28 = 7,425.10 : x
  2. Step 2: Convert to fraction form
    19,125.55/28,677.28 = 7,425.10/x
  3. Step 3: Cross multiply
    19,125.55x = 28,677.28 × 7,425.10
  4. Step 4: Simplify right side
    19,125.55x = 212,931,537.62
  5. Step 5: Solve for x
    x = 212,931,537.62/19,125.55
  6. Step 6: Final answer
    x = 11,133.36

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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.