Home / 7,572.54-10,448.58-4,428.12

Finding the Fourth Proportional to 7,572.54, 10,448.58 and 4,428.12

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Solution

The fourth proportional to 7,572.54, 10,448.58 and 4,428.12 is: 6,109.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,572.54 : 10,448.58 = 4,428.12 : x
  2. Step 2: Convert to fraction form
    7,572.54/10,448.58 = 4,428.12/x
  3. Step 3: Cross multiply
    7,572.54x = 10,448.58 × 4,428.12
  4. Step 4: Simplify right side
    7,572.54x = 46,267,566.07
  5. Step 5: Solve for x
    x = 46,267,566.07/7,572.54
  6. Step 6: Final answer
    x = 6,109.91

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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.