Home / 13,587.35-18,747.99-8,746.34

Finding the Fourth Proportional to 13,587.35, 18,747.99 and 8,746.34

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Solution

The fourth proportional to 13,587.35, 18,747.99 and 8,746.34 is: 12,068.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.35 : 18,747.99 = 8,746.34 : x
  2. Step 2: Convert to fraction form
    13,587.35/18,747.99 = 8,746.34/x
  3. Step 3: Cross multiply
    13,587.35x = 18,747.99 × 8,746.34
  4. Step 4: Simplify right side
    13,587.35x = 163,976,201.12
  5. Step 5: Solve for x
    x = 163,976,201.12/13,587.35
  6. Step 6: Final answer
    x = 12,068.30

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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.