Home / 13,551.12-18,700.74-7,583.04

Finding the Fourth Proportional to 13,551.12, 18,700.74 and 7,583.04

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Solution

The fourth proportional to 13,551.12, 18,700.74 and 7,583.04 is: 10,464.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,551.12 : 18,700.74 = 7,583.04 : x
  2. Step 2: Convert to fraction form
    13,551.12/18,700.74 = 7,583.04/x
  3. Step 3: Cross multiply
    13,551.12x = 18,700.74 × 7,583.04
  4. Step 4: Simplify right side
    13,551.12x = 141,808,459.45
  5. Step 5: Solve for x
    x = 141,808,459.45/13,551.12
  6. Step 6: Final answer
    x = 10,464.70

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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.