Home / 16,409.71-22,632.47-12,390.04

Finding the Fourth Proportional to 16,409.71, 22,632.47 and 12,390.04

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Solution

The fourth proportional to 16,409.71, 22,632.47 and 12,390.04 is: 17,088.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,409.71 : 22,632.47 = 12,390.04 : x
  2. Step 2: Convert to fraction form
    16,409.71/22,632.47 = 12,390.04/x
  3. Step 3: Cross multiply
    16,409.71x = 22,632.47 × 12,390.04
  4. Step 4: Simplify right side
    16,409.71x = 280,417,090.07
  5. Step 5: Solve for x
    x = 280,417,090.07/16,409.71
  6. Step 6: Final answer
    x = 17,088.49

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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.