Home / 15,913.53-23,881.73-12,830.76

Finding the Fourth Proportional to 15,913.53, 23,881.73 and 12,830.76

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Solution

The fourth proportional to 15,913.53, 23,881.73 and 12,830.76 is: 19,255.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,913.53 : 23,881.73 = 12,830.76 : x
  2. Step 2: Convert to fraction form
    15,913.53/23,881.73 = 12,830.76/x
  3. Step 3: Cross multiply
    15,913.53x = 23,881.73 × 12,830.76
  4. Step 4: Simplify right side
    15,913.53x = 306,420,681.86
  5. Step 5: Solve for x
    x = 306,420,681.86/15,913.53
  6. Step 6: Final answer
    x = 19,255.36

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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.