Home / 14,302.80-21,425.40-9,090

Finding the Fourth Proportional to 14,302.80, 21,425.40 and 9,090

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Solution

The fourth proportional to 14,302.80, 21,425.40 and 9,090 is: 13,616.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,302.80 : 21,425.40 = 9,090 : x
  2. Step 2: Convert to fraction form
    14,302.80/21,425.40 = 9,090/x
  3. Step 3: Cross multiply
    14,302.80x = 21,425.40 × 9,090
  4. Step 4: Simplify right side
    14,302.80x = 194,756,886
  5. Step 5: Solve for x
    x = 194,756,886/14,302.80
  6. Step 6: Final answer
    x = 13,616.70

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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.