Home / 9,190.08-12,681.48-6,209.91

Finding the Fourth Proportional to 9,190.08, 12,681.48 and 6,209.91

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Solution

The fourth proportional to 9,190.08, 12,681.48 and 6,209.91 is: 8,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,190.08 : 12,681.48 = 6,209.91 : x
  2. Step 2: Convert to fraction form
    9,190.08/12,681.48 = 6,209.91/x
  3. Step 3: Cross multiply
    9,190.08x = 12,681.48 × 6,209.91
  4. Step 4: Simplify right side
    9,190.08x = 78,750,849.47
  5. Step 5: Solve for x
    x = 78,750,849.47/9,190.08
  6. Step 6: Final answer
    x = 8,569.11

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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.