Home / 15,282.40-21,089.70-8,568.03

Finding the Fourth Proportional to 15,282.40, 21,089.70 and 8,568.03

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Solution

The fourth proportional to 15,282.40, 21,089.70 and 8,568.03 is: 11,823.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,282.40 : 21,089.70 = 8,568.03 : x
  2. Step 2: Convert to fraction form
    15,282.40/21,089.70 = 8,568.03/x
  3. Step 3: Cross multiply
    15,282.40x = 21,089.70 × 8,568.03
  4. Step 4: Simplify right side
    15,282.40x = 180,697,182.29
  5. Step 5: Solve for x
    x = 180,697,182.29/15,282.40
  6. Step 6: Final answer
    x = 11,823.87

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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.