Home / 15,014.24-20,714.60-9,715.76

Finding the Fourth Proportional to 15,014.24, 20,714.60 and 9,715.76

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Solution

The fourth proportional to 15,014.24, 20,714.60 and 9,715.76 is: 13,404.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,014.24 : 20,714.60 = 9,715.76 : x
  2. Step 2: Convert to fraction form
    15,014.24/20,714.60 = 9,715.76/x
  3. Step 3: Cross multiply
    15,014.24x = 20,714.60 × 9,715.76
  4. Step 4: Simplify right side
    15,014.24x = 201,258,082.10
  5. Step 5: Solve for x
    x = 201,258,082.10/15,014.24
  6. Step 6: Final answer
    x = 13,404.48

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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.