Home / 12,650.28-17,457.64-6,985.04

Finding the Fourth Proportional to 12,650.28, 17,457.64 and 6,985.04

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Solution

The fourth proportional to 12,650.28, 17,457.64 and 6,985.04 is: 9,639.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,650.28 : 17,457.64 = 6,985.04 : x
  2. Step 2: Convert to fraction form
    12,650.28/17,457.64 = 6,985.04/x
  3. Step 3: Cross multiply
    12,650.28x = 17,457.64 × 6,985.04
  4. Step 4: Simplify right side
    12,650.28x = 121,942,313.71
  5. Step 5: Solve for x
    x = 121,942,313.71/12,650.28
  6. Step 6: Final answer
    x = 9,639.50

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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.