Home / 15,560.34-21,491.18-11,330.31

Finding the Fourth Proportional to 15,560.34, 21,491.18 and 11,330.31

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Solution

The fourth proportional to 15,560.34, 21,491.18 and 11,330.31 is: 15,648.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,560.34 : 21,491.18 = 11,330.31 : x
  2. Step 2: Convert to fraction form
    15,560.34/21,491.18 = 11,330.31/x
  3. Step 3: Cross multiply
    15,560.34x = 21,491.18 × 11,330.31
  4. Step 4: Simplify right side
    15,560.34x = 243,501,731.67
  5. Step 5: Solve for x
    x = 243,501,731.67/15,560.34
  6. Step 6: Final answer
    x = 15,648.87

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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.