Home / 12,320.03-16,999.12-7,013.45

Finding the Fourth Proportional to 12,320.03, 16,999.12 and 7,013.45

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Solution

The fourth proportional to 12,320.03, 16,999.12 and 7,013.45 is: 9,677.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,320.03 : 16,999.12 = 7,013.45 : x
  2. Step 2: Convert to fraction form
    12,320.03/16,999.12 = 7,013.45/x
  3. Step 3: Cross multiply
    12,320.03x = 16,999.12 × 7,013.45
  4. Step 4: Simplify right side
    12,320.03x = 119,222,478.16
  5. Step 5: Solve for x
    x = 119,222,478.16/12,320.03
  6. Step 6: Final answer
    x = 9,677.13

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.