Home / 13,440.74-18,535.23-8,901.36

Finding the Fourth Proportional to 13,440.74, 18,535.23 and 8,901.36

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Solution

The fourth proportional to 13,440.74, 18,535.23 and 8,901.36 is: 12,275.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,440.74 : 18,535.23 = 8,901.36 : x
  2. Step 2: Convert to fraction form
    13,440.74/18,535.23 = 8,901.36/x
  3. Step 3: Cross multiply
    13,440.74x = 18,535.23 × 8,901.36
  4. Step 4: Simplify right side
    13,440.74x = 164,988,754.91
  5. Step 5: Solve for x
    x = 164,988,754.91/13,440.74
  6. Step 6: Final answer
    x = 12,275.28

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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.