Home / 13,587.65-18,734.95-12,580.01

Finding the Fourth Proportional to 13,587.65, 18,734.95 and 12,580.01

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Solution

The fourth proportional to 13,587.65, 18,734.95 and 12,580.01 is: 17,345.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,587.65 : 18,734.95 = 12,580.01 : x
  2. Step 2: Convert to fraction form
    13,587.65/18,734.95 = 12,580.01/x
  3. Step 3: Cross multiply
    13,587.65x = 18,734.95 × 12,580.01
  4. Step 4: Simplify right side
    13,587.65x = 235,685,858.35
  5. Step 5: Solve for x
    x = 235,685,858.35/13,587.65
  6. Step 6: Final answer
    x = 17,345.59

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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.