Home / 9,990.23-14,985.34-5,607.59

Finding the Fourth Proportional to 9,990.23, 14,985.34 and 5,607.59

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Solution

The fourth proportional to 9,990.23, 14,985.34 and 5,607.59 is: 8,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990.23 : 14,985.34 = 5,607.59 : x
  2. Step 2: Convert to fraction form
    9,990.23/14,985.34 = 5,607.59/x
  3. Step 3: Cross multiply
    9,990.23x = 14,985.34 × 5,607.59
  4. Step 4: Simplify right side
    9,990.23x = 84,031,553.78
  5. Step 5: Solve for x
    x = 84,031,553.78/9,990.23
  6. Step 6: Final answer
    x = 8,411.38

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Similar ratio
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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.