Home / 10,617.87-15,909.36-6,459.08

Finding the Fourth Proportional to 10,617.87, 15,909.36 and 6,459.08

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Solution

The fourth proportional to 10,617.87, 15,909.36 and 6,459.08 is: 9,678.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,617.87 : 15,909.36 = 6,459.08 : x
  2. Step 2: Convert to fraction form
    10,617.87/15,909.36 = 6,459.08/x
  3. Step 3: Cross multiply
    10,617.87x = 15,909.36 × 6,459.08
  4. Step 4: Simplify right side
    10,617.87x = 102,759,828.99
  5. Step 5: Solve for x
    x = 102,759,828.99/10,617.87
  6. Step 6: Final answer
    x = 9,678.01

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.