Home / 12,580.10-17,359.80-7,276.58

Finding the Fourth Proportional to 12,580.10, 17,359.80 and 7,276.58

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Solution

The fourth proportional to 12,580.10, 17,359.80 and 7,276.58 is: 10,041.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,580.10 : 17,359.80 = 7,276.58 : x
  2. Step 2: Convert to fraction form
    12,580.10/17,359.80 = 7,276.58/x
  3. Step 3: Cross multiply
    12,580.10x = 17,359.80 × 7,276.58
  4. Step 4: Simplify right side
    12,580.10x = 126,319,973.48
  5. Step 5: Solve for x
    x = 126,319,973.48/12,580.10
  6. Step 6: Final answer
    x = 10,041.25

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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.