Home / 11,302.72-15,595.68-7,328.32

Finding the Fourth Proportional to 11,302.72, 15,595.68 and 7,328.32

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Solution

The fourth proportional to 11,302.72, 15,595.68 and 7,328.32 is: 10,111.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,302.72 : 15,595.68 = 7,328.32 : x
  2. Step 2: Convert to fraction form
    11,302.72/15,595.68 = 7,328.32/x
  3. Step 3: Cross multiply
    11,302.72x = 15,595.68 × 7,328.32
  4. Step 4: Simplify right side
    11,302.72x = 114,290,133.66
  5. Step 5: Solve for x
    x = 114,290,133.66/11,302.72
  6. Step 6: Final answer
    x = 10,111.74

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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.