Home / 13,459.34-20,225.90-12,695.07

Finding the Fourth Proportional to 13,459.34, 20,225.90 and 12,695.07

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Solution

The fourth proportional to 13,459.34, 20,225.90 and 12,695.07 is: 19,077.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,459.34 : 20,225.90 = 12,695.07 : x
  2. Step 2: Convert to fraction form
    13,459.34/20,225.90 = 12,695.07/x
  3. Step 3: Cross multiply
    13,459.34x = 20,225.90 × 12,695.07
  4. Step 4: Simplify right side
    13,459.34x = 256,769,248.05
  5. Step 5: Solve for x
    x = 256,769,248.05/13,459.34
  6. Step 6: Final answer
    x = 19,077.40

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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.