Home / 13,174.95-18,182.10-7,800.47

Finding the Fourth Proportional to 13,174.95, 18,182.10 and 7,800.47

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Solution

The fourth proportional to 13,174.95, 18,182.10 and 7,800.47 is: 10,765.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,174.95 : 18,182.10 = 7,800.47 : x
  2. Step 2: Convert to fraction form
    13,174.95/18,182.10 = 7,800.47/x
  3. Step 3: Cross multiply
    13,174.95x = 18,182.10 × 7,800.47
  4. Step 4: Simplify right side
    13,174.95x = 141,828,925.59
  5. Step 5: Solve for x
    x = 141,828,925.59/13,174.95
  6. Step 6: Final answer
    x = 10,765.04

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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.