Home / 14,703.48-20,290.56-7,989.21

Finding the Fourth Proportional to 14,703.48, 20,290.56 and 7,989.21

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Solution

The fourth proportional to 14,703.48, 20,290.56 and 7,989.21 is: 11,024.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,703.48 : 20,290.56 = 7,989.21 : x
  2. Step 2: Convert to fraction form
    14,703.48/20,290.56 = 7,989.21/x
  3. Step 3: Cross multiply
    14,703.48x = 20,290.56 × 7,989.21
  4. Step 4: Simplify right side
    14,703.48x = 162,105,544.86
  5. Step 5: Solve for x
    x = 162,105,544.86/14,703.48
  6. Step 6: Final answer
    x = 11,024.98

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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.