Home / 11,312.40-16,997.40-10,045.20

Finding the Fourth Proportional to 11,312.40, 16,997.40 and 10,045.20

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Solution

The fourth proportional to 11,312.40, 16,997.40 and 10,045.20 is: 15,093.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,312.40 : 16,997.40 = 10,045.20 : x
  2. Step 2: Convert to fraction form
    11,312.40/16,997.40 = 10,045.20/x
  3. Step 3: Cross multiply
    11,312.40x = 16,997.40 × 10,045.20
  4. Step 4: Simplify right side
    11,312.40x = 170,742,282.48
  5. Step 5: Solve for x
    x = 170,742,282.48/11,312.40
  6. Step 6: Final answer
    x = 15,093.37

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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.