Home / 9,830.16-14,748.48-3,985.20

Finding the Fourth Proportional to 9,830.16, 14,748.48 and 3,985.20

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Solution

The fourth proportional to 9,830.16, 14,748.48 and 3,985.20 is: 5,979.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,830.16 : 14,748.48 = 3,985.20 : x
  2. Step 2: Convert to fraction form
    9,830.16/14,748.48 = 3,985.20/x
  3. Step 3: Cross multiply
    9,830.16x = 14,748.48 × 3,985.20
  4. Step 4: Simplify right side
    9,830.16x = 58,775,642.50
  5. Step 5: Solve for x
    x = 58,775,642.50/9,830.16
  6. Step 6: Final answer
    x = 5,979.11

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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.