Home / 13,774.68-19,009.44-7,807.24

Finding the Fourth Proportional to 13,774.68, 19,009.44 and 7,807.24

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Solution

The fourth proportional to 13,774.68, 19,009.44 and 7,807.24 is: 10,774.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,774.68 : 19,009.44 = 7,807.24 : x
  2. Step 2: Convert to fraction form
    13,774.68/19,009.44 = 7,807.24/x
  3. Step 3: Cross multiply
    13,774.68x = 19,009.44 × 7,807.24
  4. Step 4: Simplify right side
    13,774.68x = 148,411,260.35
  5. Step 5: Solve for x
    x = 148,411,260.35/13,774.68
  6. Step 6: Final answer
    x = 10,774.21

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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.