Home / 10,248.02-14,103.40-9,305.78

Finding the Fourth Proportional to 10,248.02, 14,103.40 and 9,305.78

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Solution

The fourth proportional to 10,248.02, 14,103.40 and 9,305.78 is: 12,806.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,248.02 : 14,103.40 = 9,305.78 : x
  2. Step 2: Convert to fraction form
    10,248.02/14,103.40 = 9,305.78/x
  3. Step 3: Cross multiply
    10,248.02x = 14,103.40 × 9,305.78
  4. Step 4: Simplify right side
    10,248.02x = 131,243,137.65
  5. Step 5: Solve for x
    x = 131,243,137.65/10,248.02
  6. Step 6: Final answer
    x = 12,806.68

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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.