Home / 7,015.68-9,681.62-4,031.30

Finding the Fourth Proportional to 7,015.68, 9,681.62 and 4,031.30

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Solution

The fourth proportional to 7,015.68, 9,681.62 and 4,031.30 is: 5,563.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,015.68 : 9,681.62 = 4,031.30 : x
  2. Step 2: Convert to fraction form
    7,015.68/9,681.62 = 4,031.30/x
  3. Step 3: Cross multiply
    7,015.68x = 9,681.62 × 4,031.30
  4. Step 4: Simplify right side
    7,015.68x = 39,029,514.71
  5. Step 5: Solve for x
    x = 39,029,514.71/7,015.68
  6. Step 6: Final answer
    x = 5,563.18

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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.