Home / 7,153.30-9,871.60-4,009.48

Finding the Fourth Proportional to 7,153.30, 9,871.60 and 4,009.48

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Solution

The fourth proportional to 7,153.30, 9,871.60 and 4,009.48 is: 5,533.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,153.30 : 9,871.60 = 4,009.48 : x
  2. Step 2: Convert to fraction form
    7,153.30/9,871.60 = 4,009.48/x
  3. Step 3: Cross multiply
    7,153.30x = 9,871.60 × 4,009.48
  4. Step 4: Simplify right side
    7,153.30x = 39,579,982.77
  5. Step 5: Solve for x
    x = 39,579,982.77/7,153.30
  6. Step 6: Final answer
    x = 5,533.11

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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.