Home / 19,587.51-27,014.31-12,867.89

Finding the Fourth Proportional to 19,587.51, 27,014.31 and 12,867.89

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Solution

The fourth proportional to 19,587.51, 27,014.31 and 12,867.89 is: 17,746.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,587.51 : 27,014.31 = 12,867.89 : x
  2. Step 2: Convert to fraction form
    19,587.51/27,014.31 = 12,867.89/x
  3. Step 3: Cross multiply
    19,587.51x = 27,014.31 × 12,867.89
  4. Step 4: Simplify right side
    19,587.51x = 347,617,034.43
  5. Step 5: Solve for x
    x = 347,617,034.43/19,587.51
  6. Step 6: Final answer
    x = 17,746.87

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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.