Home / 14,031.28-19,359.66-8,064.64

Finding the Fourth Proportional to 14,031.28, 19,359.66 and 8,064.64

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Solution

The fourth proportional to 14,031.28, 19,359.66 and 8,064.64 is: 11,127.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,031.28 : 19,359.66 = 8,064.64 : x
  2. Step 2: Convert to fraction form
    14,031.28/19,359.66 = 8,064.64/x
  3. Step 3: Cross multiply
    14,031.28x = 19,359.66 × 8,064.64
  4. Step 4: Simplify right side
    14,031.28x = 156,128,688.42
  5. Step 5: Solve for x
    x = 156,128,688.42/14,031.28
  6. Step 6: Final answer
    x = 11,127.19

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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.