Home / 8,687.23-13,030.74-2,113.42

Finding the Fourth Proportional to 8,687.23, 13,030.74 and 2,113.42

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Solution

The fourth proportional to 8,687.23, 13,030.74 and 2,113.42 is: 3,170.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,687.23 : 13,030.74 = 2,113.42 : x
  2. Step 2: Convert to fraction form
    8,687.23/13,030.74 = 2,113.42/x
  3. Step 3: Cross multiply
    8,687.23x = 13,030.74 × 2,113.42
  4. Step 4: Simplify right side
    8,687.23x = 27,539,426.53
  5. Step 5: Solve for x
    x = 27,539,426.53/8,687.23
  6. Step 6: Final answer
    x = 3,170.10

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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.