Home / 10,354.51-15,519.61-5,426.47

Finding the Fourth Proportional to 10,354.51, 15,519.61 and 5,426.47

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Solution

The fourth proportional to 10,354.51, 15,519.61 and 5,426.47 is: 8,133.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,354.51 : 15,519.61 = 5,426.47 : x
  2. Step 2: Convert to fraction form
    10,354.51/15,519.61 = 5,426.47/x
  3. Step 3: Cross multiply
    10,354.51x = 15,519.61 × 5,426.47
  4. Step 4: Simplify right side
    10,354.51x = 84,216,645.71
  5. Step 5: Solve for x
    x = 84,216,645.71/10,354.51
  6. Step 6: Final answer
    x = 8,133.33

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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.