Home / 12,459.20-17,170.68-10,564.72

Finding the Fourth Proportional to 12,459.20, 17,170.68 and 10,564.72

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Solution

The fourth proportional to 12,459.20, 17,170.68 and 10,564.72 is: 14,559.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,459.20 : 17,170.68 = 10,564.72 : x
  2. Step 2: Convert to fraction form
    12,459.20/17,170.68 = 10,564.72/x
  3. Step 3: Cross multiply
    12,459.20x = 17,170.68 × 10,564.72
  4. Step 4: Simplify right side
    12,459.20x = 181,403,426.41
  5. Step 5: Solve for x
    x = 181,403,426.41/12,459.20
  6. Step 6: Final answer
    x = 14,559.80

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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.