Home / 13,948.04-19,248.40-7,979.34

Finding the Fourth Proportional to 13,948.04, 19,248.40 and 7,979.34

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Solution

The fourth proportional to 13,948.04, 19,248.40 and 7,979.34 is: 11,011.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,948.04 : 19,248.40 = 7,979.34 : x
  2. Step 2: Convert to fraction form
    13,948.04/19,248.40 = 7,979.34/x
  3. Step 3: Cross multiply
    13,948.04x = 19,248.40 × 7,979.34
  4. Step 4: Simplify right side
    13,948.04x = 153,589,528.06
  5. Step 5: Solve for x
    x = 153,589,528.06/13,948.04
  6. Step 6: Final answer
    x = 11,011.55

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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.