Home / 13,450.64-18,561.61-7,482.18

Finding the Fourth Proportional to 13,450.64, 18,561.61 and 7,482.18

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Solution

The fourth proportional to 13,450.64, 18,561.61 and 7,482.18 is: 10,325.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,450.64 : 18,561.61 = 7,482.18 : x
  2. Step 2: Convert to fraction form
    13,450.64/18,561.61 = 7,482.18/x
  3. Step 3: Cross multiply
    13,450.64x = 18,561.61 × 7,482.18
  4. Step 4: Simplify right side
    13,450.64x = 138,881,307.11
  5. Step 5: Solve for x
    x = 138,881,307.11/13,450.64
  6. Step 6: Final answer
    x = 10,325.26

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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.