Home / 13,031.28-19,549.76-4,272.35

Finding the Fourth Proportional to 13,031.28, 19,549.76 and 4,272.35

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Solution

The fourth proportional to 13,031.28, 19,549.76 and 4,272.35 is: 6,409.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,031.28 : 19,549.76 = 4,272.35 : x
  2. Step 2: Convert to fraction form
    13,031.28/19,549.76 = 4,272.35/x
  3. Step 3: Cross multiply
    13,031.28x = 19,549.76 × 4,272.35
  4. Step 4: Simplify right side
    13,031.28x = 83,523,298.03
  5. Step 5: Solve for x
    x = 83,523,298.03/13,031.28
  6. Step 6: Final answer
    x = 6,409.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.