Home / 13,235.47-19,855.64-4,921.23

Finding the Fourth Proportional to 13,235.47, 19,855.64 and 4,921.23

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Solution

The fourth proportional to 13,235.47, 19,855.64 and 4,921.23 is: 7,382.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,235.47 : 19,855.64 = 4,921.23 : x
  2. Step 2: Convert to fraction form
    13,235.47/19,855.64 = 4,921.23/x
  3. Step 3: Cross multiply
    13,235.47x = 19,855.64 × 4,921.23
  4. Step 4: Simplify right side
    13,235.47x = 97,714,047.35
  5. Step 5: Solve for x
    x = 97,714,047.35/13,235.47
  6. Step 6: Final answer
    x = 7,382.74

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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.