Home / 14,587.32-20,130.60-8,299.70

Finding the Fourth Proportional to 14,587.32, 20,130.60 and 8,299.70

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Solution

The fourth proportional to 14,587.32, 20,130.60 and 8,299.70 is: 11,453.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,587.32 : 20,130.60 = 8,299.70 : x
  2. Step 2: Convert to fraction form
    14,587.32/20,130.60 = 8,299.70/x
  3. Step 3: Cross multiply
    14,587.32x = 20,130.60 × 8,299.70
  4. Step 4: Simplify right side
    14,587.32x = 167,077,840.17
  5. Step 5: Solve for x
    x = 167,077,840.17/14,587.32
  6. Step 6: Final answer
    x = 11,453.64

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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.