Home / 8,087.40-12,140.70-4,580.20

Finding the Fourth Proportional to 8,087.40, 12,140.70 and 4,580.20

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Solution

The fourth proportional to 8,087.40, 12,140.70 and 4,580.20 is: 6,875.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,087.40 : 12,140.70 = 4,580.20 : x
  2. Step 2: Convert to fraction form
    8,087.40/12,140.70 = 4,580.20/x
  3. Step 3: Cross multiply
    8,087.40x = 12,140.70 × 4,580.20
  4. Step 4: Simplify right side
    8,087.40x = 55,606,834.14
  5. Step 5: Solve for x
    x = 55,606,834.14/8,087.40
  6. Step 6: Final answer
    x = 6,875.74

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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.