Home / 13,975.32-19,276.18-9,491.28

Finding the Fourth Proportional to 13,975.32, 19,276.18 and 9,491.28

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Solution

The fourth proportional to 13,975.32, 19,276.18 and 9,491.28 is: 13,091.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,975.32 : 19,276.18 = 9,491.28 : x
  2. Step 2: Convert to fraction form
    13,975.32/19,276.18 = 9,491.28/x
  3. Step 3: Cross multiply
    13,975.32x = 19,276.18 × 9,491.28
  4. Step 4: Simplify right side
    13,975.32x = 182,955,621.71
  5. Step 5: Solve for x
    x = 182,955,621.71/13,975.32
  6. Step 6: Final answer
    x = 13,091.34

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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.