Home / 10,892.58-15,031.74-6,643.62

Finding the Fourth Proportional to 10,892.58, 15,031.74 and 6,643.62

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Solution

The fourth proportional to 10,892.58, 15,031.74 and 6,643.62 is: 9,168.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,892.58 : 15,031.74 = 6,643.62 : x
  2. Step 2: Convert to fraction form
    10,892.58/15,031.74 = 6,643.62/x
  3. Step 3: Cross multiply
    10,892.58x = 15,031.74 × 6,643.62
  4. Step 4: Simplify right side
    10,892.58x = 99,865,168.50
  5. Step 5: Solve for x
    x = 99,865,168.50/10,892.58
  6. Step 6: Final answer
    x = 9,168.18

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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.