Home / 14,567.60-20,103.20-8,281.20

Finding the Fourth Proportional to 14,567.60, 20,103.20 and 8,281.20

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Solution

The fourth proportional to 14,567.60, 20,103.20 and 8,281.20 is: 11,428.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,567.60 : 20,103.20 = 8,281.20 : x
  2. Step 2: Convert to fraction form
    14,567.60/20,103.20 = 8,281.20/x
  3. Step 3: Cross multiply
    14,567.60x = 20,103.20 × 8,281.20
  4. Step 4: Simplify right side
    14,567.60x = 166,478,619.84
  5. Step 5: Solve for x
    x = 166,478,619.84/14,567.60
  6. Step 6: Final answer
    x = 11,428.01

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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.