Home / 14,913.59-20,580.75-8,199.36

Finding the Fourth Proportional to 14,913.59, 20,580.75 and 8,199.36

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Solution

The fourth proportional to 14,913.59, 20,580.75 and 8,199.36 is: 11,315.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,913.59 : 20,580.75 = 8,199.36 : x
  2. Step 2: Convert to fraction form
    14,913.59/20,580.75 = 8,199.36/x
  3. Step 3: Cross multiply
    14,913.59x = 20,580.75 × 8,199.36
  4. Step 4: Simplify right side
    14,913.59x = 168,748,978.32
  5. Step 5: Solve for x
    x = 168,748,978.32/14,913.59
  6. Step 6: Final answer
    x = 11,315.12

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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.