Home / 13,931.52-19,226.48-7,964.08

Finding the Fourth Proportional to 13,931.52, 19,226.48 and 7,964.08

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Solution

The fourth proportional to 13,931.52, 19,226.48 and 7,964.08 is: 10,990.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,931.52 : 19,226.48 = 7,964.08 : x
  2. Step 2: Convert to fraction form
    13,931.52/19,226.48 = 7,964.08/x
  3. Step 3: Cross multiply
    13,931.52x = 19,226.48 × 7,964.08
  4. Step 4: Simplify right side
    13,931.52x = 153,121,224.84
  5. Step 5: Solve for x
    x = 153,121,224.84/13,931.52
  6. Step 6: Final answer
    x = 10,990.99

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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.