Home / 7,477.28-10,319.84-5,705.52

Finding the Fourth Proportional to 7,477.28, 10,319.84 and 5,705.52

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Solution

The fourth proportional to 7,477.28, 10,319.84 and 5,705.52 is: 7,874.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,477.28 : 10,319.84 = 5,705.52 : x
  2. Step 2: Convert to fraction form
    7,477.28/10,319.84 = 5,705.52/x
  3. Step 3: Cross multiply
    7,477.28x = 10,319.84 × 5,705.52
  4. Step 4: Simplify right side
    7,477.28x = 58,880,053.52
  5. Step 5: Solve for x
    x = 58,880,053.52/7,477.28
  6. Step 6: Final answer
    x = 7,874.53

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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.