Home / 7,015.20-9,681.49-4,031.16

Finding the Fourth Proportional to 7,015.20, 9,681.49 and 4,031.16

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Solution

The fourth proportional to 7,015.20, 9,681.49 and 4,031.16 is: 5,563.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.20 : 9,681.49 = 4,031.16 : x
  2. Step 2: Convert to fraction form
    7,015.20/9,681.49 = 4,031.16/x
  3. Step 3: Cross multiply
    7,015.20x = 9,681.49 × 4,031.16
  4. Step 4: Simplify right side
    7,015.20x = 39,027,635.23
  5. Step 5: Solve for x
    x = 39,027,635.23/7,015.20
  6. Step 6: Final answer
    x = 5,563.30

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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.