Home / 13,770.04-19,002.24-7,482.40

Finding the Fourth Proportional to 13,770.04, 19,002.24 and 7,482.40

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Solution

The fourth proportional to 13,770.04, 19,002.24 and 7,482.40 is: 10,325.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,770.04 : 19,002.24 = 7,482.40 : x
  2. Step 2: Convert to fraction form
    13,770.04/19,002.24 = 7,482.40/x
  3. Step 3: Cross multiply
    13,770.04x = 19,002.24 × 7,482.40
  4. Step 4: Simplify right side
    13,770.04x = 142,182,360.58
  5. Step 5: Solve for x
    x = 142,182,360.58/13,770.04
  6. Step 6: Final answer
    x = 10,325.49

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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.