Home / 13,219.04-18,248.13-8,445.26

Finding the Fourth Proportional to 13,219.04, 18,248.13 and 8,445.26

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Solution

The fourth proportional to 13,219.04, 18,248.13 and 8,445.26 is: 11,658.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,219.04 : 18,248.13 = 8,445.26 : x
  2. Step 2: Convert to fraction form
    13,219.04/18,248.13 = 8,445.26/x
  3. Step 3: Cross multiply
    13,219.04x = 18,248.13 × 8,445.26
  4. Step 4: Simplify right side
    13,219.04x = 154,110,111.12
  5. Step 5: Solve for x
    x = 154,110,111.12/13,219.04
  6. Step 6: Final answer
    x = 11,658.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.