Home / 15,004.64-20,707.18-8,290.22

Finding the Fourth Proportional to 15,004.64, 20,707.18 and 8,290.22

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Solution

The fourth proportional to 15,004.64, 20,707.18 and 8,290.22 is: 11,440.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,004.64 : 20,707.18 = 8,290.22 : x
  2. Step 2: Convert to fraction form
    15,004.64/20,707.18 = 8,290.22/x
  3. Step 3: Cross multiply
    15,004.64x = 20,707.18 × 8,290.22
  4. Step 4: Simplify right side
    15,004.64x = 171,666,953.52
  5. Step 5: Solve for x
    x = 171,666,953.52/15,004.64
  6. Step 6: Final answer
    x = 11,440.92

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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.