Home / 10,970.86-15,133.63-6,723.98

Finding the Fourth Proportional to 10,970.86, 15,133.63 and 6,723.98

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Solution

The fourth proportional to 10,970.86, 15,133.63 and 6,723.98 is: 9,275.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,970.86 : 15,133.63 = 6,723.98 : x
  2. Step 2: Convert to fraction form
    10,970.86/15,133.63 = 6,723.98/x
  3. Step 3: Cross multiply
    10,970.86x = 15,133.63 × 6,723.98
  4. Step 4: Simplify right side
    10,970.86x = 101,758,225.45
  5. Step 5: Solve for x
    x = 101,758,225.45/10,970.86
  6. Step 6: Final answer
    x = 9,275.32

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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.