Home / 11,567.47-15,990.01-10,320.88

Finding the Fourth Proportional to 11,567.47, 15,990.01 and 10,320.88

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Solution

The fourth proportional to 11,567.47, 15,990.01 and 10,320.88 is: 14,266.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,567.47 : 15,990.01 = 10,320.88 : x
  2. Step 2: Convert to fraction form
    11,567.47/15,990.01 = 10,320.88/x
  3. Step 3: Cross multiply
    11,567.47x = 15,990.01 × 10,320.88
  4. Step 4: Simplify right side
    11,567.47x = 165,030,882.83
  5. Step 5: Solve for x
    x = 165,030,882.83/11,567.47
  6. Step 6: Final answer
    x = 14,266.81

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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.