Home / 13,715.60-18,935.68-9,008.08

Finding the Fourth Proportional to 13,715.60, 18,935.68 and 9,008.08

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Solution

The fourth proportional to 13,715.60, 18,935.68 and 9,008.08 is: 12,436.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,715.60 : 18,935.68 = 9,008.08 : x
  2. Step 2: Convert to fraction form
    13,715.60/18,935.68 = 9,008.08/x
  3. Step 3: Cross multiply
    13,715.60x = 18,935.68 × 9,008.08
  4. Step 4: Simplify right side
    13,715.60x = 170,574,120.29
  5. Step 5: Solve for x
    x = 170,574,120.29/13,715.60
  6. Step 6: Final answer
    x = 12,436.50

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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.