Home / 13,041.60-19,569.36-8,661.12

Finding the Fourth Proportional to 13,041.60, 19,569.36 and 8,661.12

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Solution

The fourth proportional to 13,041.60, 19,569.36 and 8,661.12 is: 12,996.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,041.60 : 19,569.36 = 8,661.12 : x
  2. Step 2: Convert to fraction form
    13,041.60/19,569.36 = 8,661.12/x
  3. Step 3: Cross multiply
    13,041.60x = 19,569.36 × 8,661.12
  4. Step 4: Simplify right side
    13,041.60x = 169,492,575.28
  5. Step 5: Solve for x
    x = 169,492,575.28/13,041.60
  6. Step 6: Final answer
    x = 12,996.30

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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.