Home / 10,643.40-15,967.56-5,095.08

Finding the Fourth Proportional to 10,643.40, 15,967.56 and 5,095.08

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Solution

The fourth proportional to 10,643.40, 15,967.56 and 5,095.08 is: 7,643.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.40 : 15,967.56 = 5,095.08 : x
  2. Step 2: Convert to fraction form
    10,643.40/15,967.56 = 5,095.08/x
  3. Step 3: Cross multiply
    10,643.40x = 15,967.56 × 5,095.08
  4. Step 4: Simplify right side
    10,643.40x = 81,355,995.60
  5. Step 5: Solve for x
    x = 81,355,995.60/10,643.40
  6. Step 6: Final answer
    x = 7,643.80

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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.