Home / 18,926.51-28,368.54-7,679.24

Finding the Fourth Proportional to 18,926.51, 28,368.54 and 7,679.24

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Solution

The fourth proportional to 18,926.51, 28,368.54 and 7,679.24 is: 11,510.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,926.51 : 28,368.54 = 7,679.24 : x
  2. Step 2: Convert to fraction form
    18,926.51/28,368.54 = 7,679.24/x
  3. Step 3: Cross multiply
    18,926.51x = 28,368.54 × 7,679.24
  4. Step 4: Simplify right side
    18,926.51x = 217,848,827.11
  5. Step 5: Solve for x
    x = 217,848,827.11/18,926.51
  6. Step 6: Final answer
    x = 11,510.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.