Home / 12,428.13-17,150.47-6,762.74

Finding the Fourth Proportional to 12,428.13, 17,150.47 and 6,762.74

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Solution

The fourth proportional to 12,428.13, 17,150.47 and 6,762.74 is: 9,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428.13 : 17,150.47 = 6,762.74 : x
  2. Step 2: Convert to fraction form
    12,428.13/17,150.47 = 6,762.74/x
  3. Step 3: Cross multiply
    12,428.13x = 17,150.47 × 6,762.74
  4. Step 4: Simplify right side
    12,428.13x = 115,984,208.14
  5. Step 5: Solve for x
    x = 115,984,208.14/12,428.13
  6. Step 6: Final answer
    x = 9,332.40

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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.