Home / 14,503.02-20,015.56-8,130.70

Finding the Fourth Proportional to 14,503.02, 20,015.56 and 8,130.70

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Solution

The fourth proportional to 14,503.02, 20,015.56 and 8,130.70 is: 11,221.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,503.02 : 20,015.56 = 8,130.70 : x
  2. Step 2: Convert to fraction form
    14,503.02/20,015.56 = 8,130.70/x
  3. Step 3: Cross multiply
    14,503.02x = 20,015.56 × 8,130.70
  4. Step 4: Simplify right side
    14,503.02x = 162,740,513.69
  5. Step 5: Solve for x
    x = 162,740,513.69/14,503.02
  6. Step 6: Final answer
    x = 11,221.15

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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.