Home / 13,522.02-18,656.29-7,855.67

Finding the Fourth Proportional to 13,522.02, 18,656.29 and 7,855.67

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Solution

The fourth proportional to 13,522.02, 18,656.29 and 7,855.67 is: 10,838.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,522.02 : 18,656.29 = 7,855.67 : x
  2. Step 2: Convert to fraction form
    13,522.02/18,656.29 = 7,855.67/x
  3. Step 3: Cross multiply
    13,522.02x = 18,656.29 × 7,855.67
  4. Step 4: Simplify right side
    13,522.02x = 146,557,574.20
  5. Step 5: Solve for x
    x = 146,557,574.20/13,522.02
  6. Step 6: Final answer
    x = 10,838.44

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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.