Home / 19,125.48-28,686.60-6,642.30

Finding the Fourth Proportional to 19,125.48, 28,686.60 and 6,642.30

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Solution

The fourth proportional to 19,125.48, 28,686.60 and 6,642.30 is: 9,962.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,125.48 : 28,686.60 = 6,642.30 : x
  2. Step 2: Convert to fraction form
    19,125.48/28,686.60 = 6,642.30/x
  3. Step 3: Cross multiply
    19,125.48x = 28,686.60 × 6,642.30
  4. Step 4: Simplify right side
    19,125.48x = 190,545,003.18
  5. Step 5: Solve for x
    x = 190,545,003.18/19,125.48
  6. Step 6: Final answer
    x = 9,962.89

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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.