Home / 12,969.38-19,448.98-4,646.90

Finding the Fourth Proportional to 12,969.38, 19,448.98 and 4,646.90

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Solution

The fourth proportional to 12,969.38, 19,448.98 and 4,646.90 is: 6,968.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,969.38 : 19,448.98 = 4,646.90 : x
  2. Step 2: Convert to fraction form
    12,969.38/19,448.98 = 4,646.90/x
  3. Step 3: Cross multiply
    12,969.38x = 19,448.98 × 4,646.90
  4. Step 4: Simplify right side
    12,969.38x = 90,377,465.16
  5. Step 5: Solve for x
    x = 90,377,465.16/12,969.38
  6. Step 6: Final answer
    x = 6,968.53

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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.