Home / 13,657.55-20,499.08-7,088.34

Finding the Fourth Proportional to 13,657.55, 20,499.08 and 7,088.34

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Solution

The fourth proportional to 13,657.55, 20,499.08 and 7,088.34 is: 10,639.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,657.55 : 20,499.08 = 7,088.34 : x
  2. Step 2: Convert to fraction form
    13,657.55/20,499.08 = 7,088.34/x
  3. Step 3: Cross multiply
    13,657.55x = 20,499.08 × 7,088.34
  4. Step 4: Simplify right side
    13,657.55x = 145,304,490.16
  5. Step 5: Solve for x
    x = 145,304,490.16/13,657.55
  6. Step 6: Final answer
    x = 10,639.14

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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.