Home / 13,130.48-19,715.16-12,496.16

Finding the Fourth Proportional to 13,130.48, 19,715.16 and 12,496.16

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Solution

The fourth proportional to 13,130.48, 19,715.16 and 12,496.16 is: 18,762.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,130.48 : 19,715.16 = 12,496.16 : x
  2. Step 2: Convert to fraction form
    13,130.48/19,715.16 = 12,496.16/x
  3. Step 3: Cross multiply
    13,130.48x = 19,715.16 × 12,496.16
  4. Step 4: Simplify right side
    13,130.48x = 246,363,793.79
  5. Step 5: Solve for x
    x = 246,363,793.79/13,130.48
  6. Step 6: Final answer
    x = 18,762.74

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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.