Home / 13,815.05-19,070.51-10,458.81

Finding the Fourth Proportional to 13,815.05, 19,070.51 and 10,458.81

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Solution

The fourth proportional to 13,815.05, 19,070.51 and 10,458.81 is: 14,437.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,815.05 : 19,070.51 = 10,458.81 : x
  2. Step 2: Convert to fraction form
    13,815.05/19,070.51 = 10,458.81/x
  3. Step 3: Cross multiply
    13,815.05x = 19,070.51 × 10,458.81
  4. Step 4: Simplify right side
    13,815.05x = 199,454,788.40
  5. Step 5: Solve for x
    x = 199,454,788.40/13,815.05
  6. Step 6: Final answer
    x = 14,437.51

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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.