Home / 9,130.69-12,600.33-5,151.79

Finding the Fourth Proportional to 9,130.69, 12,600.33 and 5,151.79

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Solution

The fourth proportional to 9,130.69, 12,600.33 and 5,151.79 is: 7,109.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,130.69 : 12,600.33 = 5,151.79 : x
  2. Step 2: Convert to fraction form
    9,130.69/12,600.33 = 5,151.79/x
  3. Step 3: Cross multiply
    9,130.69x = 12,600.33 × 5,151.79
  4. Step 4: Simplify right side
    9,130.69x = 64,914,254.09
  5. Step 5: Solve for x
    x = 64,914,254.09/9,130.69
  6. Step 6: Final answer
    x = 7,109.46

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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.