Home / 13,007.60-19,507.80-5,217.20

Finding the Fourth Proportional to 13,007.60, 19,507.80 and 5,217.20

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Solution

The fourth proportional to 13,007.60, 19,507.80 and 5,217.20 is: 7,824.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,007.60 : 19,507.80 = 5,217.20 : x
  2. Step 2: Convert to fraction form
    13,007.60/19,507.80 = 5,217.20/x
  3. Step 3: Cross multiply
    13,007.60x = 19,507.80 × 5,217.20
  4. Step 4: Simplify right side
    13,007.60x = 101,776,094.16
  5. Step 5: Solve for x
    x = 101,776,094.16/13,007.60
  6. Step 6: Final answer
    x = 7,824.36

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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.