Home / 13,297.04-18,349.08-7,988.72

Finding the Fourth Proportional to 13,297.04, 18,349.08 and 7,988.72

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Solution

The fourth proportional to 13,297.04, 18,349.08 and 7,988.72 is: 11,023.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,297.04 : 18,349.08 = 7,988.72 : x
  2. Step 2: Convert to fraction form
    13,297.04/18,349.08 = 7,988.72/x
  3. Step 3: Cross multiply
    13,297.04x = 18,349.08 × 7,988.72
  4. Step 4: Simplify right side
    13,297.04x = 146,585,662.38
  5. Step 5: Solve for x
    x = 146,585,662.38/13,297.04
  6. Step 6: Final answer
    x = 11,023.93

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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.