Home / 19,130.42-28,683.88-6,645.08

Finding the Fourth Proportional to 19,130.42, 28,683.88 and 6,645.08

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Solution

The fourth proportional to 19,130.42, 28,683.88 and 6,645.08 is: 9,963.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,130.42 : 28,683.88 = 6,645.08 : x
  2. Step 2: Convert to fraction form
    19,130.42/28,683.88 = 6,645.08/x
  3. Step 3: Cross multiply
    19,130.42x = 28,683.88 × 6,645.08
  4. Step 4: Simplify right side
    19,130.42x = 190,606,677.31
  5. Step 5: Solve for x
    x = 190,606,677.31/19,130.42
  6. Step 6: Final answer
    x = 9,963.54

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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.