Home / 10,390.07-14,326.02-8,394.45

Finding the Fourth Proportional to 10,390.07, 14,326.02 and 8,394.45

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Solution

The fourth proportional to 10,390.07, 14,326.02 and 8,394.45 is: 11,574.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,390.07 : 14,326.02 = 8,394.45 : x
  2. Step 2: Convert to fraction form
    10,390.07/14,326.02 = 8,394.45/x
  3. Step 3: Cross multiply
    10,390.07x = 14,326.02 × 8,394.45
  4. Step 4: Simplify right side
    10,390.07x = 120,259,058.59
  5. Step 5: Solve for x
    x = 120,259,058.59/10,390.07
  6. Step 6: Final answer
    x = 11,574.43

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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.