Home / 13,462.12-18,569.08-8,688.16

Finding the Fourth Proportional to 13,462.12, 18,569.08 and 8,688.16

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Solution

The fourth proportional to 13,462.12, 18,569.08 and 8,688.16 is: 11,984.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,462.12 : 18,569.08 = 8,688.16 : x
  2. Step 2: Convert to fraction form
    13,462.12/18,569.08 = 8,688.16/x
  3. Step 3: Cross multiply
    13,462.12x = 18,569.08 × 8,688.16
  4. Step 4: Simplify right side
    13,462.12x = 161,331,138.09
  5. Step 5: Solve for x
    x = 161,331,138.09/13,462.12
  6. Step 6: Final answer
    x = 11,984.08

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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.