Home / 10,071.80-15,112.02-6,555.32

Finding the Fourth Proportional to 10,071.80, 15,112.02 and 6,555.32

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Solution

The fourth proportional to 10,071.80, 15,112.02 and 6,555.32 is: 9,835.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,071.80 : 15,112.02 = 6,555.32 : x
  2. Step 2: Convert to fraction form
    10,071.80/15,112.02 = 6,555.32/x
  3. Step 3: Cross multiply
    10,071.80x = 15,112.02 × 6,555.32
  4. Step 4: Simplify right side
    10,071.80x = 99,064,126.95
  5. Step 5: Solve for x
    x = 99,064,126.95/10,071.80
  6. Step 6: Final answer
    x = 9,835.79

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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.