Home / 10,681.32-16,017.88-5,133.12

Finding the Fourth Proportional to 10,681.32, 16,017.88 and 5,133.12

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Solution

The fourth proportional to 10,681.32, 16,017.88 and 5,133.12 is: 7,697.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,681.32 : 16,017.88 = 5,133.12 : x
  2. Step 2: Convert to fraction form
    10,681.32/16,017.88 = 5,133.12/x
  3. Step 3: Cross multiply
    10,681.32x = 16,017.88 × 5,133.12
  4. Step 4: Simplify right side
    10,681.32x = 82,221,700.19
  5. Step 5: Solve for x
    x = 82,221,700.19/10,681.32
  6. Step 6: Final answer
    x = 7,697.71

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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.