Home / 12,925.24-19,390.02-5,140.60

Finding the Fourth Proportional to 12,925.24, 19,390.02 and 5,140.60

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Solution

The fourth proportional to 12,925.24, 19,390.02 and 5,140.60 is: 7,711.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,925.24 : 19,390.02 = 5,140.60 : x
  2. Step 2: Convert to fraction form
    12,925.24/19,390.02 = 5,140.60/x
  3. Step 3: Cross multiply
    12,925.24x = 19,390.02 × 5,140.60
  4. Step 4: Simplify right side
    12,925.24x = 99,676,336.81
  5. Step 5: Solve for x
    x = 99,676,336.81/12,925.24
  6. Step 6: Final answer
    x = 7,711.76

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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.