Home / 11,386.98-15,714.06-6,351.53

Finding the Fourth Proportional to 11,386.98, 15,714.06 and 6,351.53

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Solution

The fourth proportional to 11,386.98, 15,714.06 and 6,351.53 is: 8,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,386.98 : 15,714.06 = 6,351.53 : x
  2. Step 2: Convert to fraction form
    11,386.98/15,714.06 = 6,351.53/x
  3. Step 3: Cross multiply
    11,386.98x = 15,714.06 × 6,351.53
  4. Step 4: Simplify right side
    11,386.98x = 99,808,285.53
  5. Step 5: Solve for x
    x = 99,808,285.53/11,386.98
  6. Step 6: Final answer
    x = 8,765.12

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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.