Home / 13,925.04-19,216.80-7,637.40

Finding the Fourth Proportional to 13,925.04, 19,216.80 and 7,637.40

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Solution

The fourth proportional to 13,925.04, 19,216.80 and 7,637.40 is: 10,539.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,925.04 : 19,216.80 = 7,637.40 : x
  2. Step 2: Convert to fraction form
    13,925.04/19,216.80 = 7,637.40/x
  3. Step 3: Cross multiply
    13,925.04x = 19,216.80 × 7,637.40
  4. Step 4: Simplify right side
    13,925.04x = 146,766,388.32
  5. Step 5: Solve for x
    x = 146,766,388.32/13,925.04
  6. Step 6: Final answer
    x = 10,539.75

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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.