Home / 14,587.14-20,130.65-8,921.79

Finding the Fourth Proportional to 14,587.14, 20,130.65 and 8,921.79

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Solution

The fourth proportional to 14,587.14, 20,130.65 and 8,921.79 is: 12,312.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.14 : 20,130.65 = 8,921.79 : x
  2. Step 2: Convert to fraction form
    14,587.14/20,130.65 = 8,921.79/x
  3. Step 3: Cross multiply
    14,587.14x = 20,130.65 × 8,921.79
  4. Step 4: Simplify right side
    14,587.14x = 179,601,387.25
  5. Step 5: Solve for x
    x = 179,601,387.25/14,587.14
  6. Step 6: Final answer
    x = 12,312.31

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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.