Home / 13,869.99-19,140.39-7,582.32

Finding the Fourth Proportional to 13,869.99, 19,140.39 and 7,582.32

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Solution

The fourth proportional to 13,869.99, 19,140.39 and 7,582.32 is: 10,463.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,869.99 : 19,140.39 = 7,582.32 : x
  2. Step 2: Convert to fraction form
    13,869.99/19,140.39 = 7,582.32/x
  3. Step 3: Cross multiply
    13,869.99x = 19,140.39 × 7,582.32
  4. Step 4: Simplify right side
    13,869.99x = 145,128,561.90
  5. Step 5: Solve for x
    x = 145,128,561.90/13,869.99
  6. Step 6: Final answer
    x = 10,463.49

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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.