Home / 11,918.84-16,432.35-10,258.07

Finding the Fourth Proportional to 11,918.84, 16,432.35 and 10,258.07

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Solution

The fourth proportional to 11,918.84, 16,432.35 and 10,258.07 is: 14,142.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,918.84 : 16,432.35 = 10,258.07 : x
  2. Step 2: Convert to fraction form
    11,918.84/16,432.35 = 10,258.07/x
  3. Step 3: Cross multiply
    11,918.84x = 16,432.35 × 10,258.07
  4. Step 4: Simplify right side
    11,918.84x = 168,564,196.56
  5. Step 5: Solve for x
    x = 168,564,196.56/11,918.84
  6. Step 6: Final answer
    x = 14,142.67

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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.