Home / 10,665.49-14,712.02-6,679.68

Finding the Fourth Proportional to 10,665.49, 14,712.02 and 6,679.68

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Solution

The fourth proportional to 10,665.49, 14,712.02 and 6,679.68 is: 9,213.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,665.49 : 14,712.02 = 6,679.68 : x
  2. Step 2: Convert to fraction form
    10,665.49/14,712.02 = 6,679.68/x
  3. Step 3: Cross multiply
    10,665.49x = 14,712.02 × 6,679.68
  4. Step 4: Simplify right side
    10,665.49x = 98,271,585.75
  5. Step 5: Solve for x
    x = 98,271,585.75/10,665.49
  6. Step 6: Final answer
    x = 9,213.98

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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.