Home / 10,935.12-15,087.24-6,459.24

Finding the Fourth Proportional to 10,935.12, 15,087.24 and 6,459.24

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Solution

The fourth proportional to 10,935.12, 15,087.24 and 6,459.24 is: 8,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,935.12 : 15,087.24 = 6,459.24 : x
  2. Step 2: Convert to fraction form
    10,935.12/15,087.24 = 6,459.24/x
  3. Step 3: Cross multiply
    10,935.12x = 15,087.24 × 6,459.24
  4. Step 4: Simplify right side
    10,935.12x = 97,452,104.10
  5. Step 5: Solve for x
    x = 97,452,104.10/10,935.12
  6. Step 6: Final answer
    x = 8,911.85

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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.