Home / 12,547.56-18,826.74-4,758.60

Finding the Fourth Proportional to 12,547.56, 18,826.74 and 4,758.60

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Solution

The fourth proportional to 12,547.56, 18,826.74 and 4,758.60 is: 7,139.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,547.56 : 18,826.74 = 4,758.60 : x
  2. Step 2: Convert to fraction form
    12,547.56/18,826.74 = 4,758.60/x
  3. Step 3: Cross multiply
    12,547.56x = 18,826.74 × 4,758.60
  4. Step 4: Simplify right side
    12,547.56x = 89,588,924.96
  5. Step 5: Solve for x
    x = 89,588,924.96/12,547.56
  6. Step 6: Final answer
    x = 7,139.95

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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.