Home / 12,631.10-17,430.28-7,041.02

Finding the Fourth Proportional to 12,631.10, 17,430.28 and 7,041.02

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Solution

The fourth proportional to 12,631.10, 17,430.28 and 7,041.02 is: 9,716.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,631.10 : 17,430.28 = 7,041.02 : x
  2. Step 2: Convert to fraction form
    12,631.10/17,430.28 = 7,041.02/x
  3. Step 3: Cross multiply
    12,631.10x = 17,430.28 × 7,041.02
  4. Step 4: Simplify right side
    12,631.10x = 122,726,845.33
  5. Step 5: Solve for x
    x = 122,726,845.33/12,631.10
  6. Step 6: Final answer
    x = 9,716.25

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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.