Home / 13,289.02-19,814.37-12,808.80

Finding the Fourth Proportional to 13,289.02, 19,814.37 and 12,808.80

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Solution

The fourth proportional to 13,289.02, 19,814.37 and 12,808.80 is: 19,098.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,289.02 : 19,814.37 = 12,808.80 : x
  2. Step 2: Convert to fraction form
    13,289.02/19,814.37 = 12,808.80/x
  3. Step 3: Cross multiply
    13,289.02x = 19,814.37 × 12,808.80
  4. Step 4: Simplify right side
    13,289.02x = 253,798,302.46
  5. Step 5: Solve for x
    x = 253,798,302.46/13,289.02
  6. Step 6: Final answer
    x = 19,098.35

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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.