Home / 15,465.40-23,165.70-8,531.80

Finding the Fourth Proportional to 15,465.40, 23,165.70 and 8,531.80

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Solution

The fourth proportional to 15,465.40, 23,165.70 and 8,531.80 is: 12,779.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,465.40 : 23,165.70 = 8,531.80 : x
  2. Step 2: Convert to fraction form
    15,465.40/23,165.70 = 8,531.80/x
  3. Step 3: Cross multiply
    15,465.40x = 23,165.70 × 8,531.80
  4. Step 4: Simplify right side
    15,465.40x = 197,645,119.26
  5. Step 5: Solve for x
    x = 197,645,119.26/15,465.40
  6. Step 6: Final answer
    x = 12,779.83

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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.