Home / 11,258.60-15,519.80-7,475.08

Finding the Fourth Proportional to 11,258.60, 15,519.80 and 7,475.08

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Solution

The fourth proportional to 11,258.60, 15,519.80 and 7,475.08 is: 10,304.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,258.60 : 15,519.80 = 7,475.08 : x
  2. Step 2: Convert to fraction form
    11,258.60/15,519.80 = 7,475.08/x
  3. Step 3: Cross multiply
    11,258.60x = 15,519.80 × 7,475.08
  4. Step 4: Simplify right side
    11,258.60x = 116,011,746.58
  5. Step 5: Solve for x
    x = 116,011,746.58/11,258.60
  6. Step 6: Final answer
    x = 10,304.28

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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.