Home / 10,145.71-15,214.69-4,877.39

Finding the Fourth Proportional to 10,145.71, 15,214.69 and 4,877.39

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Solution

The fourth proportional to 10,145.71, 15,214.69 and 4,877.39 is: 7,314.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,145.71 : 15,214.69 = 4,877.39 : x
  2. Step 2: Convert to fraction form
    10,145.71/15,214.69 = 4,877.39/x
  3. Step 3: Cross multiply
    10,145.71x = 15,214.69 × 4,877.39
  4. Step 4: Simplify right side
    10,145.71x = 74,207,950.77
  5. Step 5: Solve for x
    x = 74,207,950.77/10,145.71
  6. Step 6: Final answer
    x = 7,314.22

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.