Home / 9,907.31-13,660.13-8,560.48

Finding the Fourth Proportional to 9,907.31, 13,660.13 and 8,560.48

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Solution

The fourth proportional to 9,907.31, 13,660.13 and 8,560.48 is: 11,803.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,907.31 : 13,660.13 = 8,560.48 : x
  2. Step 2: Convert to fraction form
    9,907.31/13,660.13 = 8,560.48/x
  3. Step 3: Cross multiply
    9,907.31x = 13,660.13 × 8,560.48
  4. Step 4: Simplify right side
    9,907.31x = 116,937,226.86
  5. Step 5: Solve for x
    x = 116,937,226.86/9,907.31
  6. Step 6: Final answer
    x = 11,803.13

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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.