Home / 13,020.48-19,487.91-7,088.31

Finding the Fourth Proportional to 13,020.48, 19,487.91 and 7,088.31

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Solution

The fourth proportional to 13,020.48, 19,487.91 and 7,088.31 is: 10,609.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,020.48 : 19,487.91 = 7,088.31 : x
  2. Step 2: Convert to fraction form
    13,020.48/19,487.91 = 7,088.31/x
  3. Step 3: Cross multiply
    13,020.48x = 19,487.91 × 7,088.31
  4. Step 4: Simplify right side
    13,020.48x = 138,136,347.33
  5. Step 5: Solve for x
    x = 138,136,347.33/13,020.48
  6. Step 6: Final answer
    x = 10,609.16

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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.