Home / 13,903.51-19,171.47-8,859.74

Finding the Fourth Proportional to 13,903.51, 19,171.47 and 8,859.74

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Solution

The fourth proportional to 13,903.51, 19,171.47 and 8,859.74 is: 12,216.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,903.51 : 19,171.47 = 8,859.74 : x
  2. Step 2: Convert to fraction form
    13,903.51/19,171.47 = 8,859.74/x
  3. Step 3: Cross multiply
    13,903.51x = 19,171.47 × 8,859.74
  4. Step 4: Simplify right side
    13,903.51x = 169,854,326.28
  5. Step 5: Solve for x
    x = 169,854,326.28/13,903.51
  6. Step 6: Final answer
    x = 12,216.65

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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.