Home / 8,256.30-12,371.50-6,386.77

Finding the Fourth Proportional to 8,256.30, 12,371.50 and 6,386.77

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Solution

The fourth proportional to 8,256.30, 12,371.50 and 6,386.77 is: 9,570.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,256.30 : 12,371.50 = 6,386.77 : x
  2. Step 2: Convert to fraction form
    8,256.30/12,371.50 = 6,386.77/x
  3. Step 3: Cross multiply
    8,256.30x = 12,371.50 × 6,386.77
  4. Step 4: Simplify right side
    8,256.30x = 79,013,925.06
  5. Step 5: Solve for x
    x = 79,013,925.06/8,256.30
  6. Step 6: Final answer
    x = 9,570.14

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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.