Home / 13,475.36-18,597-7,811.84

Finding the Fourth Proportional to 13,475.36, 18,597 and 7,811.84

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Solution

The fourth proportional to 13,475.36, 18,597 and 7,811.84 is: 10,780.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,475.36 : 18,597 = 7,811.84 : x
  2. Step 2: Convert to fraction form
    13,475.36/18,597 = 7,811.84/x
  3. Step 3: Cross multiply
    13,475.36x = 18,597 × 7,811.84
  4. Step 4: Simplify right side
    13,475.36x = 145,276,788.48
  5. Step 5: Solve for x
    x = 145,276,788.48/13,475.36
  6. Step 6: Final answer
    x = 10,780.92

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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.