Home / 11,542.76-15,929.48-6,507.20

Finding the Fourth Proportional to 11,542.76, 15,929.48 and 6,507.20

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Solution

The fourth proportional to 11,542.76, 15,929.48 and 6,507.20 is: 8,980.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,542.76 : 15,929.48 = 6,507.20 : x
  2. Step 2: Convert to fraction form
    11,542.76/15,929.48 = 6,507.20/x
  3. Step 3: Cross multiply
    11,542.76x = 15,929.48 × 6,507.20
  4. Step 4: Simplify right side
    11,542.76x = 103,656,312.26
  5. Step 5: Solve for x
    x = 103,656,312.26/11,542.76
  6. Step 6: Final answer
    x = 8,980.20

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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.