Home / 18,913.98-28,317.63-10,009.14

Finding the Fourth Proportional to 18,913.98, 28,317.63 and 10,009.14

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Solution

The fourth proportional to 18,913.98, 28,317.63 and 10,009.14 is: 14,985.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,913.98 : 28,317.63 = 10,009.14 : x
  2. Step 2: Convert to fraction form
    18,913.98/28,317.63 = 10,009.14/x
  3. Step 3: Cross multiply
    18,913.98x = 28,317.63 × 10,009.14
  4. Step 4: Simplify right side
    18,913.98x = 283,435,123.14
  5. Step 5: Solve for x
    x = 283,435,123.14/18,913.98
  6. Step 6: Final answer
    x = 14,985.48

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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.