Home / 15,302.80-21,112.68-9,717.04

Finding the Fourth Proportional to 15,302.80, 21,112.68 and 9,717.04

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Solution

The fourth proportional to 15,302.80, 21,112.68 and 9,717.04 is: 13,406.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,302.80 : 21,112.68 = 9,717.04 : x
  2. Step 2: Convert to fraction form
    15,302.80/21,112.68 = 9,717.04/x
  3. Step 3: Cross multiply
    15,302.80x = 21,112.68 × 9,717.04
  4. Step 4: Simplify right side
    15,302.80x = 205,152,756.07
  5. Step 5: Solve for x
    x = 205,152,756.07/15,302.80
  6. Step 6: Final answer
    x = 13,406.22

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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.