Home / 7,628.63-10,528.68-4,644.08

Finding the Fourth Proportional to 7,628.63, 10,528.68 and 4,644.08

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Solution

The fourth proportional to 7,628.63, 10,528.68 and 4,644.08 is: 6,409.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,628.63 : 10,528.68 = 4,644.08 : x
  2. Step 2: Convert to fraction form
    7,628.63/10,528.68 = 4,644.08/x
  3. Step 3: Cross multiply
    7,628.63x = 10,528.68 × 4,644.08
  4. Step 4: Simplify right side
    7,628.63x = 48,896,095.69
  5. Step 5: Solve for x
    x = 48,896,095.69/7,628.63
  6. Step 6: Final answer
    x = 6,409.55

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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.