Home / 10,581.32-14,590.85-8,921.03

Finding the Fourth Proportional to 10,581.32, 14,590.85 and 8,921.03

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Solution

The fourth proportional to 10,581.32, 14,590.85 and 8,921.03 is: 12,301.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,581.32 : 14,590.85 = 8,921.03 : x
  2. Step 2: Convert to fraction form
    10,581.32/14,590.85 = 8,921.03/x
  3. Step 3: Cross multiply
    10,581.32x = 14,590.85 × 8,921.03
  4. Step 4: Simplify right side
    10,581.32x = 130,165,293.02
  5. Step 5: Solve for x
    x = 130,165,293.02/10,581.32
  6. Step 6: Final answer
    x = 12,301.43

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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.