Home / 10,973.20-15,148.68-7,621.84

Finding the Fourth Proportional to 10,973.20, 15,148.68 and 7,621.84

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Solution

The fourth proportional to 10,973.20, 15,148.68 and 7,621.84 is: 10,522.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,973.20 : 15,148.68 = 7,621.84 : x
  2. Step 2: Convert to fraction form
    10,973.20/15,148.68 = 7,621.84/x
  3. Step 3: Cross multiply
    10,973.20x = 15,148.68 × 7,621.84
  4. Step 4: Simplify right side
    10,973.20x = 115,460,815.17
  5. Step 5: Solve for x
    x = 115,460,815.17/10,973.20
  6. Step 6: Final answer
    x = 10,522.07

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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.