Home / 12,038.04-16,603.62-8,691.90

Finding the Fourth Proportional to 12,038.04, 16,603.62 and 8,691.90

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Solution

The fourth proportional to 12,038.04, 16,603.62 and 8,691.90 is: 11,988.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,038.04 : 16,603.62 = 8,691.90 : x
  2. Step 2: Convert to fraction form
    12,038.04/16,603.62 = 8,691.90/x
  3. Step 3: Cross multiply
    12,038.04x = 16,603.62 × 8,691.90
  4. Step 4: Simplify right side
    12,038.04x = 144,317,004.68
  5. Step 5: Solve for x
    x = 144,317,004.68/12,038.04
  6. Step 6: Final answer
    x = 11,988.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.