Home / 15,451.46-21,332.21-10,155.43

Finding the Fourth Proportional to 15,451.46, 21,332.21 and 10,155.43

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Solution

The fourth proportional to 15,451.46, 21,332.21 and 10,155.43 is: 14,020.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,451.46 : 21,332.21 = 10,155.43 : x
  2. Step 2: Convert to fraction form
    15,451.46/21,332.21 = 10,155.43/x
  3. Step 3: Cross multiply
    15,451.46x = 21,332.21 × 10,155.43
  4. Step 4: Simplify right side
    15,451.46x = 216,637,678.42
  5. Step 5: Solve for x
    x = 216,637,678.42/15,451.46
  6. Step 6: Final answer
    x = 14,020.53

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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.