Home / 12,347.40-17,036.70-7,309.12

Finding the Fourth Proportional to 12,347.40, 17,036.70 and 7,309.12

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Solution

The fourth proportional to 12,347.40, 17,036.70 and 7,309.12 is: 10,084.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,347.40 : 17,036.70 = 7,309.12 : x
  2. Step 2: Convert to fraction form
    12,347.40/17,036.70 = 7,309.12/x
  3. Step 3: Cross multiply
    12,347.40x = 17,036.70 × 7,309.12
  4. Step 4: Simplify right side
    12,347.40x = 124,523,284.70
  5. Step 5: Solve for x
    x = 124,523,284.70/12,347.40
  6. Step 6: Final answer
    x = 10,084.98

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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.