Home / 10,746.80-16,009.36-10,420.34

Finding the Fourth Proportional to 10,746.80, 16,009.36 and 10,420.34

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Solution

The fourth proportional to 10,746.80, 16,009.36 and 10,420.34 is: 15,523.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,746.80 : 16,009.36 = 10,420.34 : x
  2. Step 2: Convert to fraction form
    10,746.80/16,009.36 = 10,420.34/x
  3. Step 3: Cross multiply
    10,746.80x = 16,009.36 × 10,420.34
  4. Step 4: Simplify right side
    10,746.80x = 166,822,974.38
  5. Step 5: Solve for x
    x = 166,822,974.38/10,746.80
  6. Step 6: Final answer
    x = 15,523.04

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.