Home / 10,165.34-14,025.40-6,979.60

Finding the Fourth Proportional to 10,165.34, 14,025.40 and 6,979.60

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Solution

The fourth proportional to 10,165.34, 14,025.40 and 6,979.60 is: 9,629.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,165.34 : 14,025.40 = 6,979.60 : x
  2. Step 2: Convert to fraction form
    10,165.34/14,025.40 = 6,979.60/x
  3. Step 3: Cross multiply
    10,165.34x = 14,025.40 × 6,979.60
  4. Step 4: Simplify right side
    10,165.34x = 97,891,681.84
  5. Step 5: Solve for x
    x = 97,891,681.84/10,165.34
  6. Step 6: Final answer
    x = 9,629.95

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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.