Home / 10,742.40-16,113.60-10,137.60

Finding the Fourth Proportional to 10,742.40, 16,113.60 and 10,137.60

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Solution

The fourth proportional to 10,742.40, 16,113.60 and 10,137.60 is: 15,206.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,742.40 : 16,113.60 = 10,137.60 : x
  2. Step 2: Convert to fraction form
    10,742.40/16,113.60 = 10,137.60/x
  3. Step 3: Cross multiply
    10,742.40x = 16,113.60 × 10,137.60
  4. Step 4: Simplify right side
    10,742.40x = 163,353,231.36
  5. Step 5: Solve for x
    x = 163,353,231.36/10,742.40
  6. Step 6: Final answer
    x = 15,206.40

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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.