Home / 13,071.84-18,037.56-7,407.24

Finding the Fourth Proportional to 13,071.84, 18,037.56 and 7,407.24

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Solution

The fourth proportional to 13,071.84, 18,037.56 and 7,407.24 is: 10,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,071.84 : 18,037.56 = 7,407.24 : x
  2. Step 2: Convert to fraction form
    13,071.84/18,037.56 = 7,407.24/x
  3. Step 3: Cross multiply
    13,071.84x = 18,037.56 × 7,407.24
  4. Step 4: Simplify right side
    13,071.84x = 133,608,535.93
  5. Step 5: Solve for x
    x = 133,608,535.93/13,071.84
  6. Step 6: Final answer
    x = 10,221.10

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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.