Home / 9,985.20-14,971.50-5,302.32

Finding the Fourth Proportional to 9,985.20, 14,971.50 and 5,302.32

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Solution

The fourth proportional to 9,985.20, 14,971.50 and 5,302.32 is: 7,950.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,985.20 : 14,971.50 = 5,302.32 : x
  2. Step 2: Convert to fraction form
    9,985.20/14,971.50 = 5,302.32/x
  3. Step 3: Cross multiply
    9,985.20x = 14,971.50 × 5,302.32
  4. Step 4: Simplify right side
    9,985.20x = 79,383,683.88
  5. Step 5: Solve for x
    x = 79,383,683.88/9,985.20
  6. Step 6: Final answer
    x = 7,950.13

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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.