Home / 15,686.46-23,391.32-13,509.18

Finding the Fourth Proportional to 15,686.46, 23,391.32 and 13,509.18

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Solution

The fourth proportional to 15,686.46, 23,391.32 and 13,509.18 is: 20,144.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,686.46 : 23,391.32 = 13,509.18 : x
  2. Step 2: Convert to fraction form
    15,686.46/23,391.32 = 13,509.18/x
  3. Step 3: Cross multiply
    15,686.46x = 23,391.32 × 13,509.18
  4. Step 4: Simplify right side
    15,686.46x = 315,997,484.77
  5. Step 5: Solve for x
    x = 315,997,484.77/15,686.46
  6. Step 6: Final answer
    x = 20,144.60

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.