Home / 9,319.48-13,983.98-5,158.70

Finding the Fourth Proportional to 9,319.48, 13,983.98 and 5,158.70

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Solution

The fourth proportional to 9,319.48, 13,983.98 and 5,158.70 is: 7,740.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,319.48 : 13,983.98 = 5,158.70 : x
  2. Step 2: Convert to fraction form
    9,319.48/13,983.98 = 5,158.70/x
  3. Step 3: Cross multiply
    9,319.48x = 13,983.98 × 5,158.70
  4. Step 4: Simplify right side
    9,319.48x = 72,139,157.63
  5. Step 5: Solve for x
    x = 72,139,157.63/9,319.48
  6. Step 6: Final answer
    x = 7,740.68

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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.