Home / 15,012.63-20,717.15-9,707.31

Finding the Fourth Proportional to 15,012.63, 20,717.15 and 9,707.31

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Solution

The fourth proportional to 15,012.63, 20,717.15 and 9,707.31 is: 13,395.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,012.63 : 20,717.15 = 9,707.31 : x
  2. Step 2: Convert to fraction form
    15,012.63/20,717.15 = 9,707.31/x
  3. Step 3: Cross multiply
    15,012.63x = 20,717.15 × 9,707.31
  4. Step 4: Simplify right side
    15,012.63x = 201,107,748.83
  5. Step 5: Solve for x
    x = 201,107,748.83/15,012.63
  6. Step 6: Final answer
    x = 13,395.90

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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.