Home / 10,746.40-16,119.60-9,110.20

Finding the Fourth Proportional to 10,746.40, 16,119.60 and 9,110.20

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Solution

The fourth proportional to 10,746.40, 16,119.60 and 9,110.20 is: 13,665.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,746.40 : 16,119.60 = 9,110.20 : x
  2. Step 2: Convert to fraction form
    10,746.40/16,119.60 = 9,110.20/x
  3. Step 3: Cross multiply
    10,746.40x = 16,119.60 × 9,110.20
  4. Step 4: Simplify right side
    10,746.40x = 146,852,779.92
  5. Step 5: Solve for x
    x = 146,852,779.92/10,746.40
  6. Step 6: Final answer
    x = 13,665.30

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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.