Home / 7,623-10,518.53-4,639.79

Finding the Fourth Proportional to 7,623, 10,518.53 and 4,639.79

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Solution

The fourth proportional to 7,623, 10,518.53 and 4,639.79 is: 6,402.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,623 : 10,518.53 = 4,639.79 : x
  2. Step 2: Convert to fraction form
    7,623/10,518.53 = 4,639.79/x
  3. Step 3: Cross multiply
    7,623x = 10,518.53 × 4,639.79
  4. Step 4: Simplify right side
    7,623x = 48,803,694.52
  5. Step 5: Solve for x
    x = 48,803,694.52/7,623
  6. Step 6: Final answer
    x = 6,402.16

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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.