Home / 13,575.60-20,363.40-4,807.60

Finding the Fourth Proportional to 13,575.60, 20,363.40 and 4,807.60

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Solution

The fourth proportional to 13,575.60, 20,363.40 and 4,807.60 is: 7,211.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,575.60 : 20,363.40 = 4,807.60 : x
  2. Step 2: Convert to fraction form
    13,575.60/20,363.40 = 4,807.60/x
  3. Step 3: Cross multiply
    13,575.60x = 20,363.40 × 4,807.60
  4. Step 4: Simplify right side
    13,575.60x = 97,899,081.84
  5. Step 5: Solve for x
    x = 97,899,081.84/13,575.60
  6. Step 6: Final answer
    x = 7,211.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.