Home / 13,434.14-18,539.40-7,465.70

Finding the Fourth Proportional to 13,434.14, 18,539.40 and 7,465.70

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Solution

The fourth proportional to 13,434.14, 18,539.40 and 7,465.70 is: 10,302.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,434.14 : 18,539.40 = 7,465.70 : x
  2. Step 2: Convert to fraction form
    13,434.14/18,539.40 = 7,465.70/x
  3. Step 3: Cross multiply
    13,434.14x = 18,539.40 × 7,465.70
  4. Step 4: Simplify right side
    13,434.14x = 138,409,598.58
  5. Step 5: Solve for x
    x = 138,409,598.58/13,434.14
  6. Step 6: Final answer
    x = 10,302.83

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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.