Home / 13,510.80-20,256.48-9,117.36

Finding the Fourth Proportional to 13,510.80, 20,256.48 and 9,117.36

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Solution

The fourth proportional to 13,510.80, 20,256.48 and 9,117.36 is: 13,669.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,510.80 : 20,256.48 = 9,117.36 : x
  2. Step 2: Convert to fraction form
    13,510.80/20,256.48 = 9,117.36/x
  3. Step 3: Cross multiply
    13,510.80x = 20,256.48 × 9,117.36
  4. Step 4: Simplify right side
    13,510.80x = 184,685,620.49
  5. Step 5: Solve for x
    x = 184,685,620.49/13,510.80
  6. Step 6: Final answer
    x = 13,669.48

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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.