Home / 10,873.68-15,005.16-6,681.12

Finding the Fourth Proportional to 10,873.68, 15,005.16 and 6,681.12

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Solution

The fourth proportional to 10,873.68, 15,005.16 and 6,681.12 is: 9,219.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,873.68 : 15,005.16 = 6,681.12 : x
  2. Step 2: Convert to fraction form
    10,873.68/15,005.16 = 6,681.12/x
  3. Step 3: Cross multiply
    10,873.68x = 15,005.16 × 6,681.12
  4. Step 4: Simplify right side
    10,873.68x = 100,251,274.58
  5. Step 5: Solve for x
    x = 100,251,274.58/10,873.68
  6. Step 6: Final answer
    x = 9,219.63

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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.