Home / 13,587.16-20,384.38-5,685.50

Finding the Fourth Proportional to 13,587.16, 20,384.38 and 5,685.50

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Solution

The fourth proportional to 13,587.16, 20,384.38 and 5,685.50 is: 8,529.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.16 : 20,384.38 = 5,685.50 : x
  2. Step 2: Convert to fraction form
    13,587.16/20,384.38 = 5,685.50/x
  3. Step 3: Cross multiply
    13,587.16x = 20,384.38 × 5,685.50
  4. Step 4: Simplify right side
    13,587.16x = 115,895,392.49
  5. Step 5: Solve for x
    x = 115,895,392.49/13,587.16
  6. Step 6: Final answer
    x = 8,529.77

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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.