Home / 13,177.63-19,770.51-5,280.13

Finding the Fourth Proportional to 13,177.63, 19,770.51 and 5,280.13

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Solution

The fourth proportional to 13,177.63, 19,770.51 and 5,280.13 is: 7,921.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,177.63 : 19,770.51 = 5,280.13 : x
  2. Step 2: Convert to fraction form
    13,177.63/19,770.51 = 5,280.13/x
  3. Step 3: Cross multiply
    13,177.63x = 19,770.51 × 5,280.13
  4. Step 4: Simplify right side
    13,177.63x = 104,390,862.97
  5. Step 5: Solve for x
    x = 104,390,862.97/13,177.63
  6. Step 6: Final answer
    x = 7,921.82

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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.