Home / 11,284.32-15,572.61-7,312.35

Finding the Fourth Proportional to 11,284.32, 15,572.61 and 7,312.35

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Solution

The fourth proportional to 11,284.32, 15,572.61 and 7,312.35 is: 10,091.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,284.32 : 15,572.61 = 7,312.35 : x
  2. Step 2: Convert to fraction form
    11,284.32/15,572.61 = 7,312.35/x
  3. Step 3: Cross multiply
    11,284.32x = 15,572.61 × 7,312.35
  4. Step 4: Simplify right side
    11,284.32x = 113,872,374.73
  5. Step 5: Solve for x
    x = 113,872,374.73/11,284.32
  6. Step 6: Final answer
    x = 10,091.20

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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.