Home / 15,003.08-20,700.74-8,953.63

Finding the Fourth Proportional to 15,003.08, 20,700.74 and 8,953.63

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Solution

The fourth proportional to 15,003.08, 20,700.74 and 8,953.63 is: 12,353.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,003.08 : 20,700.74 = 8,953.63 : x
  2. Step 2: Convert to fraction form
    15,003.08/20,700.74 = 8,953.63/x
  3. Step 3: Cross multiply
    15,003.08x = 20,700.74 × 8,953.63
  4. Step 4: Simplify right side
    15,003.08x = 185,346,789.07
  5. Step 5: Solve for x
    x = 185,346,789.07/15,003.08
  6. Step 6: Final answer
    x = 12,353.92

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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.