Home / 10,643.28-14,688.36-6,165.60

Finding the Fourth Proportional to 10,643.28, 14,688.36 and 6,165.60

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Solution

The fourth proportional to 10,643.28, 14,688.36 and 6,165.60 is: 8,508.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,643.28 : 14,688.36 = 6,165.60 : x
  2. Step 2: Convert to fraction form
    10,643.28/14,688.36 = 6,165.60/x
  3. Step 3: Cross multiply
    10,643.28x = 14,688.36 × 6,165.60
  4. Step 4: Simplify right side
    10,643.28x = 90,562,552.42
  5. Step 5: Solve for x
    x = 90,562,552.42/10,643.28
  6. Step 6: Final answer
    x = 8,508.90

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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.