Home / 8,101.04-12,130.90-6,459.98

Finding the Fourth Proportional to 8,101.04, 12,130.90 and 6,459.98

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Solution

The fourth proportional to 8,101.04, 12,130.90 and 6,459.98 is: 9,673.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,101.04 : 12,130.90 = 6,459.98 : x
  2. Step 2: Convert to fraction form
    8,101.04/12,130.90 = 6,459.98/x
  3. Step 3: Cross multiply
    8,101.04x = 12,130.90 × 6,459.98
  4. Step 4: Simplify right side
    8,101.04x = 78,365,371.38
  5. Step 5: Solve for x
    x = 78,365,371.38/8,101.04
  6. Step 6: Final answer
    x = 9,673.50

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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.