Home / 13,987.15-19,302.17-7,613.55

Finding the Fourth Proportional to 13,987.15, 19,302.17 and 7,613.55

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Solution

The fourth proportional to 13,987.15, 19,302.17 and 7,613.55 is: 10,506.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,987.15 : 19,302.17 = 7,613.55 : x
  2. Step 2: Convert to fraction form
    13,987.15/19,302.17 = 7,613.55/x
  3. Step 3: Cross multiply
    13,987.15x = 19,302.17 × 7,613.55
  4. Step 4: Simplify right side
    13,987.15x = 146,957,998.34
  5. Step 5: Solve for x
    x = 146,957,998.34/13,987.15
  6. Step 6: Final answer
    x = 10,506.65

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Double scale
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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.