Home / 8,688.59-13,030.13-3,141.20

Finding the Fourth Proportional to 8,688.59, 13,030.13 and 3,141.20

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Solution

The fourth proportional to 8,688.59, 13,030.13 and 3,141.20 is: 4,710.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,688.59 : 13,030.13 = 3,141.20 : x
  2. Step 2: Convert to fraction form
    8,688.59/13,030.13 = 3,141.20/x
  3. Step 3: Cross multiply
    8,688.59x = 13,030.13 × 3,141.20
  4. Step 4: Simplify right side
    8,688.59x = 40,930,163.50
  5. Step 5: Solve for x
    x = 40,930,163.50/8,688.59
  6. Step 6: Final answer
    x = 4,710.80

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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.