Home / 12,248.80-16,897.56-8,271.20

Finding the Fourth Proportional to 12,248.80, 16,897.56 and 8,271.20

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Solution

The fourth proportional to 12,248.80, 16,897.56 and 8,271.20 is: 11,410.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,248.80 : 16,897.56 = 8,271.20 : x
  2. Step 2: Convert to fraction form
    12,248.80/16,897.56 = 8,271.20/x
  3. Step 3: Cross multiply
    12,248.80x = 16,897.56 × 8,271.20
  4. Step 4: Simplify right side
    12,248.80x = 139,763,098.27
  5. Step 5: Solve for x
    x = 139,763,098.27/12,248.80
  6. Step 6: Final answer
    x = 11,410.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.