Home / 10,239.32-14,138.40-6,885.08

Finding the Fourth Proportional to 10,239.32, 14,138.40 and 6,885.08

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Solution

The fourth proportional to 10,239.32, 14,138.40 and 6,885.08 is: 9,506.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,239.32 : 14,138.40 = 6,885.08 : x
  2. Step 2: Convert to fraction form
    10,239.32/14,138.40 = 6,885.08/x
  3. Step 3: Cross multiply
    10,239.32x = 14,138.40 × 6,885.08
  4. Step 4: Simplify right side
    10,239.32x = 97,344,015.07
  5. Step 5: Solve for x
    x = 97,344,015.07/10,239.32
  6. Step 6: Final answer
    x = 9,506.88

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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.