Home / 19,325.07-28,987.29-7,638.39

Finding the Fourth Proportional to 19,325.07, 28,987.29 and 7,638.39

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Solution

The fourth proportional to 19,325.07, 28,987.29 and 7,638.39 is: 11,457.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,325.07 : 28,987.29 = 7,638.39 : x
  2. Step 2: Convert to fraction form
    19,325.07/28,987.29 = 7,638.39/x
  3. Step 3: Cross multiply
    19,325.07x = 28,987.29 × 7,638.39
  4. Step 4: Simplify right side
    19,325.07x = 221,416,226.06
  5. Step 5: Solve for x
    x = 221,416,226.06/19,325.07
  6. Step 6: Final answer
    x = 11,457.46

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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.