Home / 19,128.29-28,697.06-6,646.50

Finding the Fourth Proportional to 19,128.29, 28,697.06 and 6,646.50

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Solution

The fourth proportional to 19,128.29, 28,697.06 and 6,646.50 is: 9,971.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,128.29 : 28,697.06 = 6,646.50 : x
  2. Step 2: Convert to fraction form
    19,128.29/28,697.06 = 6,646.50/x
  3. Step 3: Cross multiply
    19,128.29x = 28,697.06 × 6,646.50
  4. Step 4: Simplify right side
    19,128.29x = 190,735,009.29
  5. Step 5: Solve for x
    x = 190,735,009.29/19,128.29
  6. Step 6: Final answer
    x = 9,971.36

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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.