Home / 15,529.68-21,438.18-9,154.26

Finding the Fourth Proportional to 15,529.68, 21,438.18 and 9,154.26

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Solution

The fourth proportional to 15,529.68, 21,438.18 and 9,154.26 is: 12,637.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,529.68 : 21,438.18 = 9,154.26 : x
  2. Step 2: Convert to fraction form
    15,529.68/21,438.18 = 9,154.26/x
  3. Step 3: Cross multiply
    15,529.68x = 21,438.18 × 9,154.26
  4. Step 4: Simplify right side
    15,529.68x = 196,250,673.65
  5. Step 5: Solve for x
    x = 196,250,673.65/15,529.68
  6. Step 6: Final answer
    x = 12,637.14

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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.