Home / 13,828.60-20,730.30-5,061.40

Finding the Fourth Proportional to 13,828.60, 20,730.30 and 5,061.40

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Solution

The fourth proportional to 13,828.60, 20,730.30 and 5,061.40 is: 7,587.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,828.60 : 20,730.30 = 5,061.40 : x
  2. Step 2: Convert to fraction form
    13,828.60/20,730.30 = 5,061.40/x
  3. Step 3: Cross multiply
    13,828.60x = 20,730.30 × 5,061.40
  4. Step 4: Simplify right side
    13,828.60x = 104,924,340.42
  5. Step 5: Solve for x
    x = 104,924,340.42/13,828.60
  6. Step 6: Final answer
    x = 7,587.49

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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.