Home / 16,438.09-22,690.43-9,726.07

Finding the Fourth Proportional to 16,438.09, 22,690.43 and 9,726.07

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Solution

The fourth proportional to 16,438.09, 22,690.43 and 9,726.07 is: 13,425.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,438.09 : 22,690.43 = 9,726.07 : x
  2. Step 2: Convert to fraction form
    16,438.09/22,690.43 = 9,726.07/x
  3. Step 3: Cross multiply
    16,438.09x = 22,690.43 × 9,726.07
  4. Step 4: Simplify right side
    16,438.09x = 220,688,710.51
  5. Step 5: Solve for x
    x = 220,688,710.51/16,438.09
  6. Step 6: Final answer
    x = 13,425.45

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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.