Home / 10,023.48-15,015.60-8,636.76

Finding the Fourth Proportional to 10,023.48, 15,015.60 and 8,636.76

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Solution

The fourth proportional to 10,023.48, 15,015.60 and 8,636.76 is: 12,938.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,023.48 : 15,015.60 = 8,636.76 : x
  2. Step 2: Convert to fraction form
    10,023.48/15,015.60 = 8,636.76/x
  3. Step 3: Cross multiply
    10,023.48x = 15,015.60 × 8,636.76
  4. Step 4: Simplify right side
    10,023.48x = 129,686,133.46
  5. Step 5: Solve for x
    x = 129,686,133.46/10,023.48
  6. Step 6: Final answer
    x = 12,938.23

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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.