Home / 15,740.11-21,716.47-10,429.35

Finding the Fourth Proportional to 15,740.11, 21,716.47 and 10,429.35

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Solution

The fourth proportional to 15,740.11, 21,716.47 and 10,429.35 is: 14,389.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,740.11 : 21,716.47 = 10,429.35 : x
  2. Step 2: Convert to fraction form
    15,740.11/21,716.47 = 10,429.35/x
  3. Step 3: Cross multiply
    15,740.11x = 21,716.47 × 10,429.35
  4. Step 4: Simplify right side
    15,740.11x = 226,488,666.39
  5. Step 5: Solve for x
    x = 226,488,666.39/15,740.11
  6. Step 6: Final answer
    x = 14,389.27

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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.